What is the relationship between these three structures?

a. The cell is composed only of DNA and protein.

b. DNA controls the production of protein in the cell.

c. DNA is made up of proteins that are synthesized in the cell

d. Protein is composed of DNA that is stored in the cell.

the answer is d

Explanation:

this is because you need to have protein to have DNA and  you need DNA to create a cell. hope this helped

me and my friend did 2

we solve the problem using the hardy-wineberg equation.

let us start with the homozygous recessive proportion of individuals with sickle cell anaemia,

we have the proportion as q² = 0.25.

∴ q = 0.5 (frequency of hbs in population)

further,

solving for the frequency of normal cell by using the fact that,

p + q = 1

∴ p = 1 - 0.5 = 1 - 0.5 = 0.5

now we can calculate 2pq in p² + 2pq + q², which is the frequency for heterozygous carriers of sickle cell anaemia,

∴ 2pq = 2 x 0.5 x 0.5 = 0.5

and the homozygous normal cell individuals proportion is given by the expression,

∴ p² = 0.5² = 0.25

hence, the carriers for sickle cell anaemia are in proportion, 0.5, or 50%.