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Anuta_ua [19.1K]
2 years ago
5

Does natural selection operate on individuals or populations

Biology
1 answer:
White raven [17]2 years ago
3 0
I want to say individuals more so than entire populations. That being said it's because the entire populations of living things are able to evolve and move forward through slow evolution.
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When fasting continues long beyond glycogen depletion, body protein will be broken down to make glucose?
Ede4ka [16]
Answer;
The above statement is true;
When fasting continues long beyond glycogen depletion, body protein will be broken down to make glucose,

Explanation;
When the body runs low on fuel, it utilizes the stored glycogen in the liver and muscle, which is the primary source of stored energy. The after the depletion of glycogen the body burns fat, and if fasting continues the body begins to break down non essential proteins for energy.  protein is the last source of stored energy available to the body.
6 0
3 years ago
Individuals without AFS have a glutamic acid at position 487 on the ALDH2 protein, whereas individuals with AFS have a lysine at
azamat

Answer:

Aldehyde Dehydrogenase 2 (ALDH2) is an enzyme required to eliminate toxins such as acetaldehyde and alcohol, thereby mutations in this protein may be associated with the Alcohol flush syndrome (AFS)

Explanation:

ALDH2 is a protein required for ATP generation by catalyzing the oxidation of aldehydes to carboxylic acids (i.e., oxidation of NADH to NAD+). Mutations in the ALDH2 gene have been associated with the inactive form of this enzyme, and this specific mutation at position 487 alters its enzymatic activity associated with the metabolism of acetaldehyde and alcohol. This amino acid substitution may lead to the active site-directed inactivation of the enzyme.

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