The correct answer is b. There could be too few chromosomes.
Chromosomes play a critical role in the transmission of genetic information from one generation to the next and are essential for the proper functioning and development of all living organisms. They are long, coiled-up strands of DNA that are tightly packed with proteins called histones, which help to organize and compact the DNA. During cell division, chromosomes condense even further and can be easily visualized under a microscope.
Chromosomes come in pairs in most organisms, with one chromosome inherited from each parent. The number and shape of chromosomes vary between different species, and changes in chromosome number or structure can lead to genetic disorders. This allows scientists to study the structure and behavior of chromosomes during different stages of the cell cycle, such as mitosis and meiosis.
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Complete Question:
what could show up if an illness in s phase came about during the mobile cycle? institution of solution alternatives
A). there could be a lack of cytoplasm.
B). there will be too few chromosomes
C). in a daughter cell following cytokinesis.
D). none of these.
E). all organelles won't be duplicated.
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Answer:
B. the ability of Earth's atmosphere to trap incoming and reflected solar energy
Explanation:
I took the study island quiz! =D
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what happens during a heart attack? group of answer choices blood pools in the lower extremities. blood supply to some area of the brain is interrupted. the heart pumps at an excessively rapid rate. blood supply is blocked to some area of the heart.
During a heart attack, option D: blood supply is blocked to some area of the heart.
Blood flow to a portion of your heart ceases or is significantly reduced during a heart attack, which damages or kills that portion of your heart muscle. If a portion of your heart is unable to pump because it is dying from a lack of blood flow, the entire pumping cycle of your heart may be hampered.
A myocardial infarction, often known as a heart attack, is a very hazardous ailment that develops when the blood supply to your heart muscle is cut off. Although there are numerous potential causes, a blockage in one or more of your heart's arteries is the most common one.
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Complete question:
what happens during a heart attack? group of answer choices
blood pools in the lower extremities.
blood supply to some area of the brain is interrupted.
the heart pumps at an excessively rapid rate.
blood supply is blocked to some area of the heart.
How does the excretory system respond when blood pH gets too low?
A. The liver makes more digestive fluids.
B. The kidneys filter more acid from the blood.
C. The stomach produces more hydrochloric acid.
D. The lungs exhale less carbon dioxide
Which information helps scientists determine the survival probability of a population
Scientists can determine the survival probability of a population by studying various factors such as birth rate, death rate, migration, environmental conditions, genetic diversity, and population size.
How do scientists use population data to determine the survival probability of a species?Scientists use population data to analyze trends such as population size, density, age structure, and reproduction rates to estimate the survival
What factors can affect the survival probability of a population?
Various factors can affect the survival probability of a population, including changes in habitat, availability of resources, predation, disease, climate change, and human activities such as hunting and pollution.
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Outline the steps of a practical photosynthesis investigation.
Photosynthesis is the process by which photoautotrophs convert light energy into chemical energy which can later be used as a fuel for the activities of organisms.
The sunlight is absorbed by the chlorophyll in the leaves of the plants. Carbon dioxide enters the plant through structures called the stomata, which are usually found on the underside of the leaves. Water is absorbed through the roots of the plant.
The light-dependent reaction occurs during the day. At this stage, water is spilt into its elements – oxygen and hydrogen ions. Then, the ions go through a series of electron carriers, eventually leading to the accumulation of hydrogen ions. As electrons get transferred from one electron carrier to another, energy is released. In this case, ATP & NADPH are released.
The light Independent reaction uses the energy produced during light depending on the reaction to transform carbon dioxide into glucose. The transformation from carbon dioxide to glucose requires a few reactions. The same molecule produces glucose during this process.
The lower parts of the leaves have rather “spaced out” cells. This structure permits carbon dioxide to permeate into other parts of the leaves, thereby facilitating the release of oxygen.
Match the correct captions to the pictures showing areas of fast-moving and slow-moving water.
Answer: D, B, A, C
Explanation: This is the answer moving from the top of the image to the bottom.
. if the intracellular and extracellular concentration of ion-a are equal, ion-a is the only ion in the neuron, and the neuron is only permeable to ion-a, what is ion-a's equilibrium potential?\
If the intracellular and extracellular concentration of ion-a are equal and ion-a is the only ion in the neuron, the neuron is at equilibrium, and there is no net movement of ion-a across the membrane. At equilibrium, the membrane potential of the neuron is equal to the equilibrium potential for ion-a.
The equilibrium potential of an ion is determined by the Nernst equation:
Eion = (RT/zF)ln([ion]out/[ion]in)
where R is the gas constant, T is the temperature in Kelvin, z is the valence of the ion (in this case, 1), F is Faraday's constant, [ion]out is the extracellular concentration of ion-a, and [ion]in is the intracellular concentration of ion-a.
Since the intracellular and extracellular concentrations of ion-a are equal, [ion]out/[ion]in = 1, and ln([ion]out/[ion]in) = 0. Therefore, the equation reduces to:
Eion = (RT/zF)ln(1) = 0
This means that the equilibrium potential for ion-a is 0 mV. At this potential, there is no net movement of ion-a across the membrane, and the neuron is at equilibrium.
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How does the presence of differently oriented magnetic bands of oceanic rock support the theory of plate tectonics?
Thank you to anyone who helps :))
A new stripe with a new polarity starts as the Geomagnetic field flips. Such magnetic patterns are among the greatest pieces of evidence supporting the hypothesis of plate tectonics.
How is plate tectonics supported by magnetic orientation?The revelation that rocks just on seafloor preserve ancient magnetic field reversals was one of the most important pieces of evidence for plate tectonic theory. As rocks form where plates are drifting apart, they preserve the present direction of the magnetic field of the Earth, which flip-flops.
Which hypothesis describes the magnetic orientation in rock samples?The study of the magnetic field of the Earth as preserved in rocks is known as palaeomagnetism. In the nineteenth century, scientists learned that some minerals have the potential to develop with magnetic fields parallel to those of the Earth.
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a/an organelle may become specialized and may aggregate with others of its kind to form greater levels of organization
A/An Cell Organelle may become specialized and may aggregate with others of its kind to form greater levels of organization.
An organelle is a subcellular structure that, like an organ in the body, has one or more specialized tasks to carry out within the cell. The nucleus, which house genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the most significant cell organelles.
An organelle is a specialized component with a particular function that is often found within a cell in cell biology. The suffix -elle, a diminutive, in the word organelle, refers to the concept that these structures are components of cells, much like organs are to the body.
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Which lists three units of an organ system in order from the simplest to the most complex? a. red blood cell → heart → tissue b. skeleton → bone → bone cell c muscle cell → muscle tissue → stomach d. lung tissue → lung → circulatory system
with respect to rna processing, which of the following is false? question 8 options: rna processing leads to the production of alternative gene products. some introns are removed by spliceosomes. some introns are self-splicing.
The enzyme reverse transcriptase produces DNA enzymatically from an RNA template during reverse transcription. The RNA processing processes do not involve this enzyme.
What is an illustration of a gene?Many of your characteristics, like your skin tone and hair color, are determined by the genes you inherit. Perhaps Emma's mother carries two genes—one for brown hair as well as one for red hair—and she gave Emma the red hair gene. if both of her father's red hair genes are present.
How do genes and DNA differ from one another?Your human anatomy is constructed and preserved by DNA. Genes are parts of your DNA that give you the physical traits that make you special.
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question what does a fern ultimately depend on as an energy source? responses tropical climate tropical climate large leaves large leaves water and soil water and soil sunlight sunlight
The Sun is the source of the energy present in every food molecule. The sun is the ultimate energy source in the majority of ecosystems. Hence (d) is the correct option.
The conversion of simple carbohydrates like glucose into simple sugars is known as photosynthesis. Solar energy, either directly or indirectly, provides food for almost all species on Earth. On solar energy, farmers rely exclusively. A process known as photosynthesis allows them to take up sunlight and transform it into nutrition. The process of photosynthesis in plants is responsible for converting the vast majority of solar energy that is present in food webs into chemical energy.
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what does a fern ultimately depend on as an energy source?
a. responses tropical climate
b. tropical climate large leaves
c. large leaves water and soil water and soil sunlight
d. sunlight.
in guinea pigs, black coat color is dominant over white coat color. the offspring of a mating between 2 heterozygous black guinea pigs would probably show a genotype ratio of:
The offspring of a mating between two heterozygous black guinea pigs would probably show a genotype ratio of 1:2:1.
When it comes to genetic cross or crossing, one can determine the possible offspring's phenotype and genotype by using a Punnett square. A Punnett square is a grid used to determine the possible genotypes of the offspring of a mating. The Punnett square is named after Reginald C. Punnett, who developed the method in 1905. The Punnett square displays all the possible outcomes of a genetic cross. Each box in the grid represents a possible combination of alleles.
Here is how we can use the Punnett square to determine the possible genotype ratio of the offspring of a mating between two heterozygous black guinea pigs. Heterozygous means that they carry different alleles for a gene. In this case, they are both carrying the dominant black coat color gene (B) and the recessive white coat color gene (b), which means they are Bb.
To make the Punnett square, you will place the alleles of one parent on the top of the grid and the alleles of the other parent on the left side of the grid. Each box in the grid represents a possible combination of alleles for the offspring.
In this case, we are dealing with two heterozygous black guinea pigs, which means that both parents are Bb. When we fill in the Punnett square, we get the following:
| | B | b |
| - | - | - |
| B | BB | Bb |
| b | Bb | bb |
The possible offspring genotypes are BB, Bb, and bb. Since black coat color is dominant over white coat color, the offspring with the BB and Bb genotypes will have black coats, while the offspring with the bb genotype will have a white coat.
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according to the central dogma, the process by which information in an rna molecule is used to direct the synthesis of a polypeptide is called group of answer choices transition. transversion. transduction. transcription. translation.
Answer:
according to the central dogma, the process by which information in an rna molecule is used to direct the synthesis of a polypeptide is called group of answer choices transition is transduction.
According to the central dogma, the process by which information in an RNA molecule is used to direct the synthesis of a polypeptide is called translation.
The central dogma is a fundamental concept in molecular biology that explains the flow of genetic information within a biological system. The process involves DNA being transcribed into RNA, which is then translated into proteins. The central dogma can be summarized as "DNA makes RNA makes protein.
RNA is an acronym for ribonucleic acid, which is a nucleic acid that helps in the transfer of genetic information. There are three main types of RNA, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).
The synthesis of a polypeptide involves the process of translation, which is the final step of the central dogma. During translation, the sequence of nucleotides in an mRNA molecule is used to direct the synthesis of a polypeptide. The process involves ribosomes, which are composed of rRNA and proteins, and tRNA molecules that carry amino acids to the ribosome. The ribosome reads the sequence of codons in the mRNA and links the appropriate amino acids together to form a polypeptide chain.
Therefore, the process by which information in an RNA molecule is used to direct the synthesis of a polypeptide is called translation.
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a definitive host harbors which stage of a parasite? a definitive host harbors which stage of a parasite? cyst adult miracidium larva all of the answers are correct.
The cyst is a definitive stage that host harbors of a parasite.
An abnormal growth that develops in the body's tissue layers and is typically filled with serous fluid is called a cyst.
Cysts in the body can develop for the reasons listed below:
1. infection
2. Genetic disorders
3. persistent irritation
4. duct obstructions.
The cyst is typically filled with the following, depending on the cause:
A material that is liquid, semisolid, or gaseous.
Blockages that result in a buildup of fluid or air are what produce cysts. The obstructions may be brought on by an infection, a genetic disorder, an inflammatory illness, a parasite, or a tumor. Around body hair or ear piercings, some people develop cysts.
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what was most likely responsible for the disappearance of the dinosaurs? group of answer choices urban development background extinction commercial exploitation mass extinction introduction of invasive species
The most likely responsible for the disappearance of the dinosaurs is the mass extinction.
The extinction of the dinosaurs was a significant event that occurred about 66 million years ago. The leading theory is that the extinction was caused by a massive asteroid impact that resulted in a global environmental disaster. The asteroid impact caused huge fires, tsunamis, and an impact winter, leading to the extinction of the dinosaurs and about 75 percent of all plant and animal species on Earth.
The mass extinction theory is supported by extensive geological and fossil evidence, which shows a sudden and widespread disappearance of dinosaurs and other species around the same time as the asteroid impact. Therefore, it is widely accepted that the mass extinction event caused by an asteroid impact was the most likely cause of the disappearance of the dinosaurs.
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which of the following statements about enzymes is not true? they do not affect the position of a reaction's equilibrium. they work by increasing the activation energy of a biochemical reaction. they increase the rate at which a reaction's equilibrium is attained. they need to be in their native conformation in order to be active. they decrease the activation energy of a biochemical reaction.
Answer:
they work by increasing the activation energy of a biochemical reaction.
Explanation: Enzymes are biological catalysts responsible for speeding up biochemical reactions. They do this by reducing the activation energy required for the reaction to proceed, not by increasing it. By lowering the activation energy, enzymes increase the rate at which a reaction's equilibrium is attained, allowing reactions to occur more rapidly and efficiently in living organisms.
The statement that is not true about enzymes is: they work by increasing the activation energy of a biochemical reaction. In fact, enzymes decrease the activation energy of a biochemical reaction, facilitating the development of the reaction.
What are enzymes?Enzymes are biological catalysts that accelerate chemical reactions in living organisms. They increase the rate of chemical reactions by decreasing the activation energy required for the reaction to occur. Without enzymes, many biological processes would not occur at a fast enough rate to sustain life.
Enzymes are often very specific to the reaction they catalyze and are essential for the proper functioning of many biological systems. Thus, enzymes decrease the activation energy of a biochemical reaction.
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why is neuromuscular electrical stimulation (nmes) able to provide stronger neuromuscular stimulation?
Neuromuscular electrical stimulation (NMES) involves the use of electrical currents to stimulate muscle contractions.
The process of stimulating muscle contractions with electrical currents is known as neuromuscular electrical stimulation (NMES). Because it directly engages the motor neurons that govern muscle contraction, avoiding the need for deliberate activation by the brain, this approach can produce stronger neuromuscular stimulation.
The motor neurons in the spinal cord are activated when a muscle contracts voluntarily as a result of brain impulses. Yet, NMES can be used to directly stimulate the motor neurons and cause muscular contractions when the brain is unable to provide these signals, as is the situation in some neurological conditions or after specific traumas.
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analyze the componenets of the ecosystem. what is the most likely outcome if the mountain lion population vanishes?
The disappearance of the mountain lion could disrupt the natural food chain and lead to negative consequences for the ecosystem.
The biological system in the mountain woodland is comprised of a few related parts, including the stream, willow trees, deer populace, mountain trout, and the dominant hunter, the mountain lion.
Willow trees develop on each side of the stream and give food to the little deer populace. The deer populace benefits from the willows, and the mountain trout depend on the willow conceal for cover.
The dominant hunter in the backwoods, the mountain lion, goes after deer, rodents, fish, and other prey species. Assuming the mountain lion populace were to disappear, it could prompt an expansion in the deer populace, which could cause overgrazing and harm to the willow trees. This could adversely influence the mountain trout, which depend on the willow trees for cover. Furthermore, the vanishing of the mountain lion could upset the regular pecking order, possibly prompting long haul ramifications for the environment.
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The complete question is:
A stream runs through a mountain forest. Willow trees grow on each side of the stream. A small deer population feeds on the willows. Mountain trout rely on the willow shade for shelter. The apex predator in the forest is the mountain lion. Mountain lions eat deer, rodents, and fish, as well as other prey species. Analyze the components of the ecosystem. What is the most likely outcome if the mountain lion population vanishes?
which is the correct spelling of the term describing the process of inserting a tube through the urethra and into the urinary bladder?
The correct spelling is urinary catheterization.
Catheterization is defined as the process of inserting a tube through the urethra which goes up to the urinary bladder and provides the passage for urine.
It is usually done to patients who have a blockage in their urinary tracts which makes them unable to urinate or to bedridden patients who are not allowed to move from the bed. This process is done by nurses and doctors.
The tube which is inserted into the urinary tract is known as a urinary catheter and it's a flexible silicone tube that empties the urinary bladder into a drainage bag.
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The word "catheterization," which refers to the procedure of putting a tube through the urethra and into the bladder of the patient, is the proper spelling.
Catheterization is a medical procedure that involves inserting a thin, flexible tube called a catheter into the bladder through the urethra. This is done to remove urine from the body when a person is unable to do so naturally or needs to have their bladder drained for medical reasons. The procedure is often performed in hospitals, clinics, or other healthcare settings under sterile conditions to prevent infection. It is important to follow proper hygiene and medical protocols when performing catheterization to avoid complications such as urinary tract infections or damage to the urinary system.
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Dean needs to lift the rock shown in the picture above. He wants to use the lever to lift the rock while using the least amount of effort force.
At which position should Dean push on the lever?
Answer:
Position B is which is the X. The first one is where we can move the rock with a little bit of power. If we do Y and Z, the rock will fly off, but if you do W, nothing happens. So, the correct option is B.
Explanation:
How the location of the oxygen molecules will change after the divider swings open
When the divider swings open, the oxygen molecules will move in response to the changes in pressure.
What is molecule?A molecule is a chemical structure composed of two or more atoms that are held together by chemical bonds. Molecules can be made of atoms from the same element or from different elements, and the chemical bonds can be covalent, ionic, or metallic. Molecules are the smallest particles of a substance that still retain the properties of that substance, and many substances can exist in the form of molecules. Molecules are the fundamental building blocks of all living things, and they allow for the chemical and physical processes that occur in living organisms. Without molecules, life would not be possible.
This movement is known as diffusion, and it occurs because the molecules are in constant motion. As the divider swings open, the pressure in the room will decrease, causing the oxygen molecules to spread out and move from the area of higher pressure to the area of lower pressure. Ultimately, the oxygen molecules will be more evenly distributed throughout the room.
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Complete Question:
Describe how the location of the oxygen molecules will change after the divider swings open.
between 2.5-1.2 mya there were three separate lineages of hominins in africa, living at the same time, sometimes even quite near each other. these three lineages are:
These three lineages are: Australopithecus afarensis (e.g. "Lucy")Paranthropus boisei (e.g. "Nutcracker Man")Homo habilis (e.g. "Handy Man").
These three hominid groups co-existed for about a million years in Africa, until they went extinct. It is assumed that these three groups shared the same environment and resources, and therefore were in direct competition with one another for those resources.
It is a crucial period in human evolution because during this time, our ancestors were learning to walk upright and were developing new ways to get food. There is a possibility that they may have also interbred with each other, producing hybrid offspring.
However, it is difficult to determine how these three lineages interacted with each other, as the fossils that have been discovered are limited in number and not all of them can be accurately dated. Nonetheless, it is fascinating to think about the possibility of three separate human-like species co-existing, competing and maybe even interacting with each other.
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which of the following principles of life describes a fundamental requirement for the growth of an organism: group of answer choices life is energy-driven. life is significant. life is interactive. life is finite. life is diverse.
One of the following principles of life that describes a fundamental requirement for the growth of an organism is "Life is energy-driven." Hence, energy is a fundamental requirement for the growth of an organism.
Living things require energy to maintain their cells and systems, as well as to create new cells and structures. Without the ability to acquire and utilize energy, life on Earth could not exist. The majority of organisms rely on photosynthesis to produce energy, but there are some organisms that consume other organisms or inorganic substances to obtain energy. Plants absorb light energy from the sun and transform it into chemical energy using photosynthesis. Animals get their energy from the foods they eat. In order to maintain their systems and structures, living organisms also require energy. Growth and development, as well as metabolic processes, require energy to maintain and construct cellular structures. Life is energy-driven because, without energy, it cannot survive.
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Use the names of respiratory diseases to fill in the blanks.
Answer:
Explanation:
the picture is not clear
when an antigen produces an allergic response, which term should be used to describe this antigen?
Often, an antigen is referred to be an allergen when it causes an allergic reaction. An allergen is a substance that, in certain people who are allergic to it, can result in an allergic reaction.
Any substance that might trigger an immunological response in the body by engaging with particular receptors on immune cells like B cells and T cells is considered an antigen. Antigens come from a variety of sources, including bacteria, viruses, fungi, parasites, and cancer cells. They might be proteins, polysaccharides, lipids, or nucleic acids.
Often, an antigen is referred to be an allergen when it causes an allergic reaction. An allergen is a substance that, in certain people who are allergic to it, can result in an allergic reaction. Pollen, dust mites, animal dander, some foods, and some drugs are typical examples of allergens. When an allergen makes its way into a sensitised person's body, it may set off an immunological reaction that results in the release of many chemicals, including histamine, which can produce symptoms like swelling, itching, and inflammation.
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if you ran a sequencing reaction on the template dna and primer shown below, where the terminator ddgtps were labeled with purple, which size band in the sequencing gel would you expect to fluoresce purple? template: 5' agttactatctg 3' primer: 5' cagat 3' group of answer choices no bands would fluoresce purple band of size 2 bases only band of size 3 bases only band of size 7 bases only bands of size 12 bases only bands of sizes 2 and 12 bases bands of sizes 3 and 7 bases bands of sizes 2, 3, 7 and 12
There are 17 rings that have plastic. There are sizes from 100 to 12000. Three to twelve millimeters are molecular weight markers covered band in the sequencing gel would you expect to fluoresce purple.
Count the number of unique bands seen on the gel to determine the number of bands discovered in the plasmid-containing lane. By comparing the migration distance of each band to the molecular weight markers (MWM) that were also run on the same gel, the size(s) of each band may be identified. A different sized DNA fragment that is present in the plasmid sample is shown by each band. Depending on the context of the experiment and the particular plasmid being examined, each band's explanation will vary.
Compare the widths of the bands seen in each lane to contrast the insert that has been digested with BamHI with the undigested insert. If there is a size difference, it means that the BamHI digestion split the insert at particular locations, producing pieces that are smaller in size than the undigested insert. This would molecular weight markers that BamHI recognition sites are present in the insert.
Add the sizes of the vector and PCR product together to determine the anticipated size of the plasmid that will result after ligating them. For instance, if the PCR product is 2 kb and the vector is 4 kb, the ligated plasmid should be 6 kb in size. This presupposes that both the PCR product and the vector were cut.
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in some fungi and slime molds, mitosis may occur without cytokinesis. what would you expect to find in these species?
In some fungi and slime molds, mitosis may occur without cytokinesis , Cells that contain multiple nuclei would you expect to find in these species So the correct option is B
Without cytokinesis, mitosis produces a cell with multiple nuclei but a linked cytoplasm (syncytium). A cell containing several nuclei is said to be multinucleated. This may be a frequent occurrence. The cytoplasm would not be split and there would not be two identical daughter cells if cytokinesis did not take place during mitosis. Thus, the cell wouldn't be able to divide into two different cells and would continue to stay at rest.
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Full Question ;
In some fungi and slime molds, mitosis may occur without cytokinesis. What would you expect to find in these species.
a. Cells that don't contain nuclei.
b. Cells that contain multiple nuclei.
c. DNA that never condense into visible chromosomes.
d. Nuclei that never enter interphase.
what is the reason that closely linked genes are typically inherited together? the number of genes in a cell is greater than the number of chromosomes.
The reason that closely linked genes are typically inherited together is that the number of genes in a cell is greater than the number of chromosomes. The genes are inherited through the chromosomes in the cell.
The chromosomes can have one or more genes that are closely linked, which means they are located close to each other on the same chromosome.Closely linked genes are typically inherited together because they are physically located close to each other on the same chromosome, and the chromosome is passed down to the offspring intact during cell division. This phenomenon is called genetic linkage.
When two genes are located close together on a chromosome, they are more likely to be inherited together because the likelihood of crossing over between the two genes is lower.
During meiosis, when the chromosome pairs line up and exchange genetic material, the closer the genes are to each other, the less likely they are to be separated. This is because crossing over events are more likely to occur between genes that are farther apart, resulting in recombination between the two chromosomes.
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what patterns in fossil record indicate that there have been changes of a particular spieces over time
One of the most important patterns in the fossil record that indicates such changes is the presence of transitional fossils.
The fossil record provides a wealth of information about the history of life on Earth, including the changes that have occurred in particular species over time.
These are fossils that exhibit characteristics of both an ancestral and a descendant species, indicating that the species underwent evolutionary change over time.
Another pattern that can indicate changes in a particular species over time is the presence of fossils in different geological layers. If a particular species is found in different geological layers, and the fossils in each layer exhibit different characteristics, it suggests that the species evolved and changed over time.
Finally, the pattern of extinction can also provide evidence of changes in a particular species over time. If a species is known to have gone extinct, it is likely that its characteristics changed over time, and it was unable to adapt to changing environmental conditions, leading to its eventual demise.
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