Can someone help me pls

Answer:

a chrosome is made up of proteins and DNA organized into genes each cell normally contains 23 pairs of chrosomes.

Chromosomes are structures formed by a DNA molecule associated with protein molecules. In prokaryotic cells, we observe a circular chromosome; in eukaryotes, chromosomes are linear and located inside the nucleus.

Answer:

D) because they separate, develop different traits therefore, they can no longer reproduce with each other.

Answer:

minerals must be inorganic

the molecules in those gases have very little kinetic energy to push molecules apart. Because of this, the attraction between the molecules pulls them together and condenses the gases into a liquid, just like the water in the first tank. ... When the nitrogen evaporates, the liquid left behind is mostly oxygen.

Answer:

Yes

Explanation:

The genomic DNA found in all nonreproductive cells is the same, no matter what tissue the cells come from.

The genomic DNA determined in all nonreproductive cells is identical, regardless of what tissue the cells come from.

To get the DNA from a molecular, scientists normally rely upon certainly considered one among many DNA extraction kits to be had from biotechnology companies.

During a DNA extraction, a detergent will purpose the molecular to pop open or lyse, in order that the DNA is launched into solution. Then alcohol is introduced to the answer reasons the DNA to precipitate out.DNA extraction is an ordinary system used to isolate DNA from the nucleus of cells.

Thus it is clear that yes we can extract DNA from your human cells.

To learn more DNA extraction refer to the link ;

https://brainly.com/question/1216630

Answer:

cones

i hope it helps mapriend

Answer:

Explanation:

The only thing I can think of is that if you are testing blood for a CBC, you are sometimes required to reject the 1st sample. Perhaps the technician forgot to take a sample that is just meant to be pitched or it was improperly labeled. I get my blood checked every other week, and the people who take it out are scrupulously careful in making sure that the first tube is labelled as waste. No one has every made the mistake of not doing it, but I can see it happening.

The question says it was properly labeled. I didn't see that. The only other thing I can think of is that the machine improperly recorded what the blood cells were and the numbers were all out of kilter.

Answer:

The values that most closely represent the expected number of Janice blonde-haired offspring is 252 individuals, option C.

Explanation:

Available data:

When talking about epistasis, we are referring to an interruption. These are interactions between genes located in different loci in the same chromosome. An epistatic gene can alter, influence, or suppress the expression of a hypostatic gene. When the epistatic gene is recessive, the interaction is known as recessive epistasis.  

Observing the altered phenotype proportions of the offspring can reveal which interaction is operating in the trait determination.  

In recessive epistasis, the proportion is 9:3:4.

Cross: Between two doubly-heterozygous

Parentals) AaBb    x    AaBb

Phenotype) Cookie-monster blue-haired individuals

Gametes)  AB, Ab, aB, ab

                 AB, Ab, aB, ab

Punnett square)     AB       Ab        aB         ab

                 AB      AABB    AABb  AaBB    AaBB

                 Ab      AABb    AAbb   AaBb    Aabb

                  aB     AaBB     AaBb   aaBB    aaBb

                  ab     AaBb      Aabb   aaBb    aabb

F1) 1000 individuals

     9/16 individuals are expected to be Cookie-monster blue-haired, A-B-

     3/16 individuals are expected to be Elmo Red, aaB-

     4/16 individuals are expected to be Janice blond, A-bb + aabb

16 ------------------------------------------- 1000 individuals

4 Janice blond individuals ---------- X = 250 individuals

So, 250 individuals are expected to be Janice blonde. The observed number might vary a little bit from this value.  The values that most closely represent the expected number of Janice blonde-haired offspring is c = 252 individuals

Different types of kingdoms exist. All animals are considered to be members of the kingdom Animalia. It also goes by the name Metazoa. Animals that have both jointed limbs and hard exoskeletons make up the phylum Arthropoda.

The following are some traits of arthropods: They are exoskeleton-equipped. Their appendages are joined. They are known to have segmented bodies.

Therefore, Examples of Order The Hemiptera Giant Water Bug Arthropoda, the phylum. Arthropoda Hymenoptera Bees, wasps, and ants Lepidoptera moths, butterflies, etc. Arthropoda.

Learn more about insects, here:

https://brainly.com/question/28017648

#SPJ1

Answer:

The Circulatory system has two organs the heart, and blood vessels. The heart pumps blood and the blood is carried away and back through blood vessels like capillaries, veins, and arteries. The Circulatory system works with the Respiratory system by carrying the oxygen that is brings in, and takes away the carbon dioxide to the Excretory system. The Circulatory system helps the Excretory system by bringing waste, and carbon dioxide to kidneys, and liver I believe it might be a different organ but I know the kidneys for sure.

The Nervous system consists of three organs the spinal cord, brain, and nerves. The two systems are the Central Nervous system is made up of the the brain, and spinal cord. The Peripheral system is made up of the nerves, which branch off from the spinal cord to all parts of the body. The Central Nervous system sends a jolt of electricity from the brain through the spinal cord to the nerves that branch of it to all parts of the body so that we can move. The Nervous system helps the Digestive system by sending electricity to the nerves so that we can swallow our food and so that we can digest our food. The Nervous system helps the Excretory system by detecting any changes in the salt levels in the blood through the urine in the Excretory system. By providing the brain with a constant supply of oxygen rich blood the Circulatory system helps the Nervous system, so the Nervous system regulates the heart rate and blood pressure. So that the Nervous system can regulate the Respiratory rate, and monitor the blood gas levels the Respiratory system supplies oxygen, and removes carbon dioxide.

The Excretory system consists of five organs the Large Intestine, Liver, Lungs, Kidneys, Skin. The Excretory system helps the Digestive system by getting rid of the waste it produces. The circulatory system helps the Excretory system by giving the kidneys, and the other organs in the Excretory system blood, and carry carbon dioxide from cells to the kidneys.

The Respiratory consists of five organs Lungs, Larynx, Trachea, Pharynx, and Bronchi. The Respiratory system provides the body with oxygen, and allows us to breath.

The Digestive System consists of nine organs, the Mouth, Esophagus, Stomach, Pancreas, Liver, Gallbladder, Small Intestine, Large Intestine, and the Anus. The Digestive system dissolves food and turns them into nutrients for cells, to give them energy, use for growth, and cell repair.

Explanation:

Hope this helps:)

keera ingram

Answer:

the answer is D

Explanation:

it is better explain and it could pullout water

Answer:

1) Option b is correct. a founder effect

2) Option a is correct. keeping the sex ratio as close to 50:50 as possible

Explanation:

The exposed situation is an example of an ex-situ conservation program. These programs are planned to keep and restore the population of species that are in danger of extinction. There are many challenges associated with captivity, and one of them is related to maintaining genetic diversity in the population.

1) Introducing a few animals of an endangered species into the zoo might be considered an example of the founder effect. Just a pregnant female is enough for it to occur. And the most significant problem associated with this event is the loss the genetic diversity or variability. When breeding animals in captivity there is a high risk of losing some genes and fixating others, due to inbreeding.    

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure-bottleneck effect- or because of a population split -founder effect-. In founder effect, a new population originates when a few individuals, coming from a bigger-sized population and carrying their genes, settle down in a new area and reproduce. This small population might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be lost by complete. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, genetic variability is reduced, and there exists the possibility of developing a peculiar allelic composition. When the number of individuals that originated the new population is low, the founder effect will be very extreme because the genetic drift effects are inversely proportional to the original number of individuals.

2) When selecting the animals that are being kept in captivity, it is significant to consider a few aspects concerning genetic diversity maintenance. The main objective is to prioritize the original genetic material.

Answer:

Microscopically, a single crystal has atoms in a near-perfect periodic arrangement; a polycrystal is composed of many microscopic crystals (called "crystallites" or "grains"), and an amorphous solid (such as glass) has no periodic arrangement even microscopically.

Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. ... The third category of solids is amorphous solids, where the atoms have no periodic structure whatsoever. Examples of amorphous solids include glass, wax, and many plastics.

In condensed matter physics and materials science, an amorphous (from the Greek a, without, morphé, shape, form) or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal. In some older books, the term has been used synonymously with glass.

Explanation:

This chapter highlights mesocrystals as an interesting example of particle‐mediated, non‐classical crystallization processes. Mesocrystals — the shortened name for mesoscopically structured crystals — are superstructures composed of nanoparticles, being arranged three‐dimensionally in crystallographic register. Mesocrystals are often only intermediate structures in a non‐classical crystallization pathway leading to a final single crystal by nanoparticle fusion. Therefore, they are difficult to detect. Although mesocrystals were initially described for synthetic systems, recent investigations have revealed an increasing number of bio‐mineral systems which appear to be mesocrystals, but which so far have been considered to be single crystalline, including nacre and sea urchin spines. This chapter briefly defines non‐classical crystallization processes, provides some examples of synthetic mesocrystals and mesocrystals in biomineralization, and attempts to provide some insight into their formation mechanisms, despite their being as yet largely unexplored.

The two statements that best describes the position of a coastal area during a high tide is that it is perpendicular to the moon which is therefore denoted as option D.

This is referred to the are very long-period waves that move through the ocean in response to the forces exerted by the moon and sun an there are two types which are high and low tide.

The position of coastal ares during high tide is that it is perpendicular to the moon which is why the side of the Earth closest to the Moon experiences the Moon's pull the strongest, and this causes the seas to rise, creating high tides.

Read more about Tide here https://brainly.com/question/2604305

#SPJ1

Answer:

The answer would be B

Explanation:

Answer:

energy is lost at each trophic level and the energy is used for warmth and digestion

Explanation:

when we eat we get energy and so do animals. like an ant will eat grass and gain energy then a anteater would eat the ants and gain energy to use for digestion then a bigger animal eats the ant eater and gains its energy and so on but everytime something is eaten energy is lost

Living things are shielded from harmful UV radiation by ozone inside the upper atmosphere, which keeps the sun's rays from reaching the planet's surface.

The colorless, odorless reactive atmosphere known as ozone is created when three oxygen atoms combine. It can be found in nature blocking UV radiation that can damage the planet's life in the troposphere of the atmosphere.

The atmospheric ozone layer in the stratosphere absorbs some of the solar radiation, preventing it from reaching the planet's surface. The main UVB energy that it absorbs is this kind of UV light. Numerous harmful effects are associated with UVB, a kind of ultraviolet rays emitted by the sun including sunlamps.

To know more about ozone visit:

https://brainly.com/question/1238233

#SPJ1

Answer:

Celestial ecliptic

Explanation:

In space seience , the ecliptic is really the conformance that represents the Sun's visible movement from around stars and planets over the span of a year; from some other perspective, it is the reflection on the celestial equator of Earth's orbit around the Sun. The constellation stars and planets are distributed around the ecliptic.

Answer:

Galactic

Explanation:

The origin of the galactic coordinate system points towards the center of the galaxy rather than towards the vernal equinox. The celestial and ecliptic coordinate systems have their point of origin towards the Vernal Equinox. The equatorial coordinate system doesn't exist.

Answer:

bh

Explanation:

Answer: The answer for 7 is C no light penetrates that far

8  d

9 D

10 A

Explanation:

light is an electromagnetic wave with color and frequency. Colors consist of different wave lengths and can be reflected or absorbed.

not 100% certain on 2 and 3 though

Answer:

3???

Explanation:

C. The parasite is the one who benefits at the expense of the host.

The most likely factor in the creation of this landform is wind. The horizontal movement of air caused by a pressure differential between two locations is known as wind.

Wind is the flow or rush of winds or an air stream, and it corresponds with bend and tend. The metaphorical term "wind" can also refer to a force that drives social or political change. A person who has run out of energy is described as winded. The word "wind" can also refer to a person's breath.

The uneven burning of the Planet by both the sun and also the Earth's rotating motion result in wind, which is the air's movement. Light breaths to natural disasters like hurricanes and tornadoes are all types of winds.

To know more about wind visit:

https://brainly.com/question/29681130

#SPJ1

Answer:

The frequency of the population that are carriers is 0.284 or 28.4%

Explanation:

According to Hardy-Weinberg equilibrium equation, p² + q² + 2pq = 1

Also, the sum of the allele frequencies for all the alleles at the locus, p + q = 1.

Where where p is the frequency of the dominant allele and q is the frequency of the recessive allele in the population.

p² = dominant h0m0zygous genotype frequency

2pq = heterozygous genotype frequency

q² = recessive h0m0zygous genotype frequency

From the given data; the dominant h0m0zygous genotype, i.e., the proportion of an African population that are susceptible to Malaria, p² = 0.688

p = √0.6880 = 0.829

But p + q = 1; q = 1 - p

Since p = 0.829, q = 1 - 0.829

q = 0.171

Frequency carriers for Sickle Cell allele, i.e., the heterozygous genotype = 2pq

Frequency of carriers = 2 × 0.829 × 0.171 = 0.284

Therefore, the frequency of the population that are carriers is 0.284 or 28.4%

Answer:

Since glycolysis of one glucose molecule generates two acetyl CoA molecules, the reactions in the glycolytic pathway and citric acid cycle produce six CO2 molecules, 10 NADH molecules, and two FADH2 molecules per glucose molecule

The products of glycolysis alone are not sufficient to directly drive the citric acid cycle (also known as the Krebs cycle or the tricarboxylic acid cycle).

However, the output of glycolysis, specifically pyruvate, is a crucial substrate that enters the mitochondria, where it undergoes further processing before entering the citric acid cycle.

The energy carriers, specifically NADH and FADH2, play a crucial role in driving the electron transport chain, the final step of cellular respiration.

The electron transport chain uses the energy from NADH and FADH2 to generate a large amount of ATP through oxidative phosphorylation.

Thus, while the products of glycolysis do not directly drive the citric acid cycle, they contribute to the overall energy production and supply the necessary substrates, such as acetyl-CoA, which is essential for the initiation of the citric acid cycle.

For more details regarding glycolysis, visit:

https://brainly.com/question/26990754

#SPJ2

Answer:

C) Sodium ions

Answer:

Eridanus.

Explanation:

Eridanus is a constellation recorded in antiquity by Ptolemy and is one of the 88 official constellations established by the International Astronomical Union.  

It is located south of the zodiac constellations Aries and Taurus, and includes about 126 stars visible to the naked eye from 1st to 6th magnitude. It is considered the longest of the constellations: it starts from the celestial equator and ends at the 60th southern celestial parallel.

12.5, 8.125,91.875

just do the math, 50/4 then 8 and then subtract