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Harman [31]
3 years ago
11

Sickle cell disease provides an example for which principle of molecular genetics? A. A point mutation always causes a significa

nt change in phenotype. B. A point mutation always causes a change to an amino acid sequence, which may affect phenotype. C. A significant change in phenotype may cause a genetic mutation. D. A change to one amino acid in a protein may cause a significant change in phenotype.
Biology
1 answer:
erastovalidia [21]3 years ago
3 0

Answer:D. A change to one amino acid in a protein may cause a significant change in phenotype.

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After Pedro had breakfast, he went for a run. Identify at least three energy transformations that had to take place to allow Ped
FromTheMoon [43]
I tried my best to answer.

1) Chemical to mechanical (calories -> muscle contractions)
2) mechanical to mechanical (muscle -> motion)
3) mechanical to thermal (motion -> heat from the body causes sweating)

The potential energy is stored in the body chemically (via food). That potential energy is then released when the body is put in motion.
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1) which one of the following is a defining characteristic of animals but not of plants? a) autotrophic b) heterotrophic c) euka
borishaifa [10]

Answer: B. Heterotrophic

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2 years ago
A kitten embryo is growing inside the uterus of a cat. What is happening to the cells of the kitten embryo?
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Answer:

A

Explanation:

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7 0
3 years ago
Explain how soil contributes to biodiversity, fighting diseases and agriculture
Contact [7]

Answer:

Soil is the basic requirement for any plant or microorganism(that lives on land) to grow and get all the required amount of nutrients from the environment. Because, when a seed is planted inside a specific amount of soil it grows and develop in to a bud having its initial structure well set for having roots at one end and stem at the other, however the soil provides the bud the main protection and support which is required to balance its structure in a proper way or orientation.

As, there are different layers of soil and each layers consists of a different level or amount of components in it and provides different specification to the over all development of plant life.

Explanation:

  • Along, with that there are different level of nutrients inside the different samples of soil taken from various regions or areas which makes it more different in nature to support life and give it a chance to grow or develop itself in it. As different species of plant life requires a more different form minerals and constituents to grow in which brings diversity among plant life, as not all of them requires the same sample of soil to grow in.
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3 0
3 years ago
Genetic disorders can result in chroma tides fail to separate properly during which phase is this problem most likely to our car
Alex Ar [27]

Answer:

Anaphase of meiosis II

Explanation:

I think you are asking during which phase of cell division sister chromatids are mostly likely to fail to separate properly, a phenomenon that can lead to genetic disease.

This is sometimes called non-disjunction, and it is most likely to occur in anaphase during meiosis II. During this stage, sister chromatids of the two daughter cells produced by meiosis 1 are separated and brought to opposite parts of the cell. If something goes wrong at this stage, the sister chromatids can fail to separate properly, meaning the daughter cells do not have the correct number of chromosomes (see attachment).

An example of such a genetic disorder is Down syndrome

3 0
3 years ago
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