Micah has straight hair. If he is homozygous for the gene that determines straight hair, what is true of his parents?

Answers

Answer 1
Answer:

Answer:

They have contributed same allele for straight hair.

Explanation:

There are two conditions homozygous and heterozygous. In homozygous conditions both the allele of a particular gene is same in an offspring which means the offspring got two same alleles from its parent for a particular gene and if an offspring is heterozygous for a gene that suggests that the parent has contributed two different alleles for that gene in the offspring.

So If Micah is homozygous for straight hair then it can be concluded that his parents have contributed two same alleles for straight hair genes.

Answer 2
Answer:

Final answer:

If Micah is homozygous for the straight hair gene, both of his parents must have contributed an allele for straight hair. They could be homozygous or heterozygous for this trait.

Explanation:

If Micah is homozygous for the gene that determines straight hair, it means he has two of the same type of allele for that gene - in this case, the allele for straight hair. This indicates that both of his parents must have contributed an allele for straight hair. The simplest scenario is that both of his parents are also homozygous for the straight hair allele. However, it's also possible that one or both parents are heterozygous, possessing one straight hair allele and one potentially recessive curly hair allele. In this scenario, they would have each passed the straight hair allele to Micah.

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A scientist added bacteria and a nutrient medium that could support the growth of the bacteria to a sterilized petri dish. No other materials were added.The graph models growth of the bacteria over time.Bacterial PopulationTimeWhich of these most likely explains why the bacterial population stopped growing?The bacteria mutated from photosynthetic to carnivorous organisms and consumed one another until all the individuals were dead.The bacteria reproduced in the system but eventually died due to limited resourcesThe bacteria became diseased and were unable to survive in the closed systemThe bacteria competed for nutrients and died after all the nutrients were consumed

What happens to the solar energy that is not absorbed by earths surface?

Answers

Answer:

It is absorbed or reflected by clouds, gasses, and dust, or is reflected off of Earth's surface.

Explanation:

 

Final answer:

The solar energy that is not absorbed by Earth's surface is reflected back into space or absorbed by the atmosphere, contributing to the greenhouse effect.

Explanation:

The solar energy that is not absorbed by Earth's surface can be reflected, scattered, or absorbed by the atmosphere. Some of the solar energy is reflected back into space by clouds, particles in the atmosphere, and Earth's surface. This is known as albedo. The rest of the solar energy is absorbed by gases such as carbon dioxide and water vapor in the atmosphere.

This absorption of solar energy by the atmosphere contributes to the greenhouse effect, which helps to regulate Earth's temperature. The absorbed energy is re-emitted as heat, warming the lower layers of the atmosphere. This is why the Earth's surface is warmer than it would be without an atmosphere.

In summary, the solar energy that is not absorbed by Earth's surface is either reflected back into space or absorbed by the atmosphere, contributing to the greenhouse effect and warming the atmosphere.

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Chinstrap and Gentoo penguins are two species of penguins that both feed on krill in the Antarctic Ocean. (These are different penguin populations from those shown in figure 38.4.) Drag the correct word or phrase from the left to complete the following sentences. Not all choices will be used. These two populations occupy the same area and have the same food source. They compete because they have the same niche. Over many generations, Gentoo penguins are driven to local extinction by the better adapted Chinstrap penguins. This is an example of _________. Over many generations. Gentoo penguins in another area adapt to feed on krill at greater depths than the Chinstrap penguins. This is an example of __________.

Answers

This is an example of competitive exclusion. Over many generations, Gentoo penguins in another area adapt to feed on krill at greater depths than the Chinstrap penguins. This is an example of adaptive radiation.

Competitive exclusion is a principle in ecology that states that two species that occupy the same niche cannot coexist indefinitely. If one species is better adapted to the environment and has a competitive advantage over the other, it will outcompete the other species and drive it to extinction. This is what appears to have happened in the case of the Chinstrap and Gentoo penguins. These two species occupy the same area and have the same food source, which means that they are competing for the same resources. Over many generations, the Chinstrap penguins, which are better adapted to the environment, were able to outcompete the Gentoo penguins and drive them to local extinction. Adaptive radiation, on the other hand, is the evolution of a single species into multiple species that each occupy a different niche. In the case of the Gentoo penguins, it appears that they were able to adapt to feeding on krill at greater depths than the Chinstrap penguins. This allowed them to occupy a different niche and coexist with the Chinstrap penguins without competing for the same resources. Adaptive radiation can occur when a species colonizes a new area with a variety of available niches or when a species evolves to exploit a new resource. In both cases, the species is able to diversify and occupy a variety of niches, allowing it to coexist with other species that occupy different niches.

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Fossils give evidence of continental drift False
True

Answers

False it has nothing to do with continental drift

Which of these describes inference to the best explanation? it draws a conclusion based on what would best explain one's observations it is a deductive inference form it only applies to scientific observations it generally leads us away from scientific explanations?

Answers

It draws a conclusion based on what would best explain one's observations.

Inference is the process where logical consequences evolve from premises that are assumed to be true. Knowledge backed with observations and reasoning as evidence is used to make conclusions. It is also referred to as an educated guess and is not necessarily factual.

You are caring for a child with acute lymphoblastic leukemia. She has been genotyped and is homozygous for a TPMT polymorphism, producing very little of the enzyme needed for this drug's metabolism. How would you expect this to affect dosing of the drug 6-mercaptopurine? a. This child should receive only a small fraction of the standard dose. b. This child should receive higher doses than the standard dose. c. This child should receive the standard dose. d. This child should receive the drug intravenously rather than orally.

Answers

Answer:

This child should receive only a small fraction of the standard dose.

Explanation:

Acute lymphoblastic leukemia may be defined as the cancer in which the bone marrow continuously divide and results in the formation of large number of lymphocytes. This may also effect the red blood cells as well as platelets.

6-mercaptopurine drug is used for the treatment of the acute lymphoblastic leukemia. Since, child does not have enough enzyme for the metabolism of this drug, only the small amount of the standard dose of this drug for the cancer treatment.

Thus, the correct answer is option (b).

One example of a stored-value card is a(n) *A. Credit Card
B. Debit Card
C. Gift Card
D. Identification Card

Answers

Answer:

credit card

Explanation:

Answer:

\boxed{Gift\:Card}

Explanation:

They are commonly used as transit cards for example gift cards and cafeteria cards.

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