Answer:
6,25%
Explanation:
Considering that the couple has a trait of sickle cell anemia, we know that both are heterozygous for the disease (Aa) and therefore can have children with the following genotypes:
Parents: Aa X Aa
Children: AA(A x A), Aa(A x a), Aa (a x A) and aa(a x a)
Knowing that sickle cell anemia only occurs in homozygous individuals, the probability for children to have the disease according to each crossing is:
A x A = 1/4 = 25%
A x a = 1/4 = 25%
a x A = 1/4 = 25%
a x a = 1/4 = 25%
The probability of forming each homozygous child (aa) is 1/4 or 25%. Since they are two children, the probability of both having sickle cell anemia is calculated by multiplying the probability of each, so:
1/4 × 1/4 = 1/16 = 0.0625 = 6.25%
It is concluded that the probability of a heterozygous couple for sickle cell anemia to have two children with the disease is 6.25%.
<span>The question says,'which statement accurately describe the function of a hormone produced by the adrenal glands? The correct option is C. Cortisol produced by the adrnal gland is called the stress hormone because it coordinates many change that occur in the body in response to stress. This include control of heart rate and blood pressure.</span><span />
Four molecules of ATP are created from both lactic acid fermentation and alcoholic fermentation.
A) plant because it does photosynthesis
<span>(3) It cannot perform metabolic processes.</span>
