Answer:
I think the answer is the D
Life Science (?) Hope it helps :)
I am taking this now It says in my course, A. Number of organisms.
Answer:
Its DNA
Explanation:
Each RNA nucleotide consists of three parts: a sugar, a phosphate group, and a nitrogen-containing base. The four RNA bases are adenine, uracil, guanine, and cytosine—often referred to as A, U, G, and C. RNA shares three bases in common with DNA: adenine, guanine, and cytosine. Instead of uracil, DNA contains thymine.
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
yes because, when egg first starts there are two x's and when the y comes in from the father this causes a gender identity. Also this is believed to be true because of the starting development of breasts on men (nipples) because they serve no real purpose.