Which of the following statements regarding human genetic disorders is accurate?
a. disorders in individual genes can cause disease or provide individuals with a genetic advantage.
b. nondisjunction can lead to an incorrect number of sex chromosomes.
c. nondisjunction is responsible for causing huntington's disease.
d. disorders in individual genes are responsible for down's syndrome.

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )