Question

question 4 of 10
sheep can have black wool or white wool. why might two sheep siblings have different wool colors?
a. the two sheep have different alleles.
b. the two sheep store their dna differently.
c. the two sheep have different numbers of genes.
d. the two sheep have different numbers of chromosomes.

Explanation:

Alleles are different forms of a gene. Different alleles can result in different traits (like wool color). DNA storage (B) is standard in sheep. All sheep siblings have similar gene (C) and chromosome (D) numbers. So, different alleles (A) explain different wool colors.

Answer:

A. The two sheep have different alleles.