Question

In the snail, an autosomal allele causing a banded shell

a. Is inherited only by males.
b. Is inherited only by females.
c. Affects both males and females.
d. Has no effect on shell color.

Answer 1

The banded shell allele in snails affects both males and females.

Step-by-step explanation:

The correct answer is c. Affects both males and females.

In snails, an autosomal allele causing a banded shell is inherited by both males and females. This means that both male and female snails can have the banded shell phenotype if they inherit the allele. Autosomal alleles are located on non-sex chromosomes and can be inherited by individuals of both sexes.

Sex determination in snails is not determined by the presence of sex chromosomes like in mammals but by environmental factors. Snails are hermaphrodites, meaning they have both male and female reproductive organs.