Answer:
D
Explanation:
they are part of the lined-up chromosomes in mitosis
i just took the quick check
In conclusion, the statement 'they are part of the lined-up chromosomes in mitosis' CORRECTLY describes sister chromatids (Option D).
During the synthesis (S) phase of the cell cycle, each chromosome is replicated. These identical DNA molecules are called sister chromatids.In mitosis, sister chromatids are held together and line up at the equator plate of the cell during metaphase.During anaphase, sister chromatids (now called chromosomes) are separated and pulled towards opposite poles of the cell by the mitotic spindle.In conclusion, the statement 'they are part of the lined-up chromosomes in mitosis' CORRECTLY describes sister chromatids (Option D).
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Which of the following information would be most useful in determining whether 2 species are closely related?
A) There leg bones look very similar
B) The age of their bones, determined by carbon dating, is the same
C) The dna sequence found in their bones varies by only a few genes
D) The bones were found in the same layer rock
The most helpful way to determine whether two species are closely related is by comparing the appearance of their leg bones which is called as the Analogous structure. So, the correct option is A.
What is an Analogous structure?In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar but not necessarily in structure.
Example of Analogous structures are an insect's wings and a bird's wings are similar in structure. Although each of these species utilize their wings to fly, the origins of their wings are different.
For the aforementioned example, examining the appearance of two species' leg bones will most accurately reveal whether two species are closely related.
Therefore, the correct option is A.
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How are mechanical waves produced?
Answer:A mechanical wave is created when a source of energy causes a vibration to travel through a medium. ... Both carry energy through a medium with out transferring matter. In transverse waves, the medium vibrates perpendicular to the direction of wich the wave travels.
Explanation:
The diagram above depicts a karyotype of an individual human. Which of the following statements concerning the karyotype in the diagram is true? Select all that apply.
The diagram indicates an individual with an extra sex chromosome
The diagram illustrates a genetic condition found in females.
The diagram illustrates the results of nondisjunction during gamete formation.
The diagram indicates a mechanism for increasing genetic diversity in subsequent generations.
Answer:the diagram illustrates the results of non disjunction during gamete formation.
Explanation:
The following statements concerning the karyotype in the diagram is true - The diagram illustrates the results of nondisjunction during gamete formation.
Karyotype
Karyotype refers to the number and appearance of chromosomes present within the nucleus of a eukaryotic cell. It is illustrated as a diagram such as given in the question.
There is no Down's syndrome as the karyotype demonstrates a normal pair of chromosome 21. In this karyotype, there is an extra X-chromosome that depicts non-disjunction during either oogenesis or spermatogenesis (gamete formation) in the parents leading to the 23rd trisomy.
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fertilization is the process by which an a)egg and pollen combine b)embryos grow into plants c)animal carries pollen between plants d)ovule breaks open and release seeds
Answer:
l
Explanation:
Is this correct? If not plz help!
PLEASE HURRY IT'S FOR A TEST!!!!!!!!!
What is the difference between rotation and revolution? Which one determines the planets length of day and which one determines the length of the year
Answer:
Rotation is when an item or object (specifically the earth) rotates on it's axis.
Revolution is when an item (the earth) orbits or "revolves" around another one (the sun).
The rotation of the earth determines how long a day lasts while the revolution (or orbit) determines how long a year lasts (with all of the season).
Also you don't have to put the ones in the parentheses ()
Please Help Me i need a good grade!
FAST!!!!!!
Answer:
it's the second one/B because it's the only one that is correct :)
what is process of forming an exact copy of the dna molecule called?
Rainforests are not found in
a. Alaska
b. Greenland
C. Australia
d. Africa
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Greenland
Explanation:
Rainforests are found in Alaska, Australia, and Africa, but not Greenland.
1 pts
Question 9
Which of these is an example of biomass energy?
O A coal-burning generator.
O A gasoline-burning automobile.
O A wood-burning stove.
O An automobile that operates on fuel cells.
Which of the following statements about DNA (deoxyribonucleic acid) is NOT true?
A. Varied chromosomes make up DNA.
B.Genes are comprised of segments of DNA.
C. Genetic material is passed from parent to offspring via DNA.
d. DNA is a set of instructions which determines the traits of an organism.
ND WHOEVER HAS A LINK OR DOES/SAYS SOMETHING IRRELEVANT DO NOT COMMENT
Answer:
I think D is incorrect.
Explanation:
BTW THOSE ARE BOTS MY SILLY SELF FR SEARCHED IT UP ON MY COMPUTER AND STUFF KEEP POPPING UP LOL. but glad it's my school computer. :) HOPE THAT HELPED
All animals are ____ eukaryotes and are _____
Answer:
All animals are multicellular, heterotrophic eukaryotes.
Explanation:
.What are two reasons hypoxic tumors are
are resistant to chemotherapy?
Answer:
chemotherapy target rapidly proliferation cells and there is poor penetration of many drugs to tumor cells that are located distal to functional blood vessels hypoxic cells are also likely to resistant to chemotherapy
Which phase describes "movement away from each other" on a molecular level?
A) Solid
B) Gas
C) Liquid
D) Methane
Answer:
B
Explanation:
gas particles are faster and move free
PLEASE ANSWER FAST
Which type of nerve cell receives messages from the environment?
A. Interneuron
B. Outer nerve cell
C. Motor neuron
D. Sensory neuron
Answer:
D. Sensory Neuron
Explanation:
Sensory neurons are the nerve cells that are activated by sensory input from the environment.
Answer:
D. sensory neurone
Explanation:
sensory neurone receives information via their receptors, which are part of the peripheral nervous system, and convert this information into electrical impulses.
Night blindness (n) is a sex-linked recessive trait. A woman who is night blind marries a man who is not night blind. What are the genotypes of both individuals?
Answer:
Genotype of night blind woman - XnXn
Genotype of normal man - XY
Explanation:
Given
Night blindness (n) is a sex-linked recessive trait. Let us say it is X linked recessive
In this case a man with XY genotype having a diseased X allele will be night blind while a woman will have night blindness if both the X allele are diseased . In case if only one X allele is diseased in women then, she will be a carrier of night blindness defect
Genotype of night blind woman - XnXn
Genotype of normal man - XY
15. What must occur in order for genetic material to be passed to cells during cell division?
A DNA replication
B RNA synthesis
C osmosis
D diffusion
Answer:
A
Explanation:
the process involves replication of cell's chromosomes, segregation of the copied DNA and splitting of parent cell's cytoplasm
In order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
What is the significance of DNA replication in cells?DNA replication is the process by which the genetic contents of a cell, the DNA, are copied which is a crucial process that occurs in all living organisms and is necessary for the maintenance of their genetic information and the transmission of this information to the next generation, it is essential for cell division and growth, as well as for the repair of damaged DNA and plays a central role in animals and plants, as new life can form and cell division takes place due to this process.
Hence, in order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
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How many tropic levels are there in the following food chain?
algae —> mosquito larvae —> dragonfly larvae —> trout
Answer:
There are 4 trophic levels in the following food chain.
9. Plants can reproduce
A. sexually and asexually.
B. constantly
C. only by cutting or budding.
D. only using pollination.
Answer:
A. sexually and asexually
Explanation:
A. Sexually and Asexually
Explanation:
there is a way they can have sexual reproduction by one parent
5-10 statistics or interesting facts about kingdom Protista
What grade are you in?
Which statement is true about all adaptations? O A. They can be lost.
O B. They enhance survival.
O c. They reduce reproduction.
O D. They are learned.
Answer:
B. They enhance survival
Describe the differences and similarities between lecithin and cephalin. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp Lecithins and cephalins are both sphingolipids; they consist of glycerol with fatty acids forming bonds with the first and second groups. The third group of the forms a with phosphoric acid, which forms another bond with an amino alcohol. In lecithins, the amino alcohol is ; in cephalins, the amino alcohol is usually .
Answer:
Here, we have a composition passage and we are required to fill in the with missing words. The missing words are highlighted in bold format and underlined.
Lecithins and cephalins are both glycerophospholipids; they consist of glycerol with fatty acids forming ester bonds with the first and second hydroxyl groups. The third hydroxyl group of the glycerol forms a phosphate bond with phosphoric acid, which forms another phosphate bond with an amino alcohol. In lecithins, the amino alcohol is choline; in cephalins, the amino alcohol is usually ethanolamine.
Explanation:
Lecithin is a chemical complex composed primarily of fatty acids, glycerol, phosphoric acid, and choline. It can be present in egg yolks, soybeans, sunflower seeds, and plant seed cells and is completely normal. Soybean and sunflower lecithins contain much more important fatty acids than rapeseed lecithin, making them nutritionally more useful.
Phosphatidylethanolamine, also known as cephalin, is a phosphoglyceride that, like phosphatidylcholines and lecithins, is a component of biological membranes. A glycerol residue esterified by two fatty acids and a phosphoethanolamine residue gives rise to phosphatidylethanolamines. They're made by combining CDP-ethanolamine with diglycerides and releasing a CMP molecule. Phosphatidylcholines are formed when S-adenosylmethionine methylates the amine in ethanolamines. They're mostly found in the inner layer of plasma membranes' lipid bilayers.
What is an example of biotechnology? What example from the Gene Editing article explains how biotechnology can be used for carbohydrates, lipids, and proteins?
Answer:
Synthetic insulin and synthetic growth hormone and diagnostic tests to detect various diseases are just some examples of biotechnology
Example of Gene Editing is Dalmatians, which often carry a genetic mutation that makes them prone to suffer from bladder stones.
?
Explanation:
HAVE A GOOD DAY
Mammals and plants don't belong in the same domain
Answer:
True
Explanation:
many people think they can live together they cant
The primary source of the specificity of enzymes is ________. The primary source of the specificity of enzymes is ________. their polarity, which matches that of their specific substrate their shape, which relates to the lock-and-key model their bonded transition metal, which is specific to the target substrate their delocalized electron cloud their locations within the cell
Answer:
their shape, which relates to the lock-and-key model
Explanation:
Enzymes are biological catalysts that are proteinous in nature. Their proteinous nature implies that they are made of amino acids, which forms a three-dimensional shape that accounts for their functionality and specificity. This means that enzymes are substrate-specific because of their 3D shape.
The three-dimensional shape of an enzyme determines the kind of substrate it will bind to. Enzymes, generally, catalyze reactions by binding to a substrate at their active site. This binding follows a lock and key pattern or model. In a nutshell, the primary source of specificity of enzymes is attributed to their SHAPE, which relates to the lock-and-key model.
Question 5 (5 points)
Plants and animals are both in the domain Eukarya - how are they similar?
| a)
Both have prokaryotic cells
| b)
Both are autotrophs
10
Both are heterotrophs
d)
Both have eukaryotic cells
А
B
0а
Oь
Ос
Od
C
D
Answer:
D) both have eukaryotic cells
Explanation:
Animals and plants are classified as Eukarya because they are eukaryotic meaning they have a nucleus. However, this doesn't mean that they get food the same way
How are Killer Whales like the Wolves of the Rocky Mountains? And is this innate or instinctive behavior?
Why are populations with high levels of genetic diversity more stable than populations with low levels of genetic diversity?
A.
Populations with high levels of genetic diversity are more likely to have individuals that will undergo
natural selection if conditions
change.
B. Populations with high levels of genetic diversity are
to more likely to have individuals with traits that help them survive if conditions
change.
X
C. Populations with high levels of genetic diversity are less likely to interbreed with other populations.
D.
Populations with high levels of genetic diversity are less likely to have high levels of variation in
alleles.
Answer:
d
Explanation:
.
Plz help me well mark brainliest if you are correct!
Answer:
Explanation:
Uh this is gonna be kinda hard cause they are all examples of renewable resources. . .
but I would just say go with what the other pearson said :D
1.Non-living things, such as a car, often show characteristics similar to those of
living organisms.
a) State which characteristic of a living organism matches each of the descriptions
linked to a car.
(i)
burning fuel in the engine to release energy...
[1]
(ii)
headlights that switch on automatically in the dark.
(iii) filling the car's tank with fuel..
. [1]
(iv)
release of waste gases..
-- [1]
b) Identify one characteristic of living things that is not carried out by a
car......
... [1]
Answer:
burning fuel in the engine to release energy...
[1]
Explanation:
i think