Dextral (D) and Sinistral (D) Shell Coiling in the Water

Multiple Choice

Dextral (D) and sinistral (d) shell coiling in the water snail Limnaea peregra is genetically determined. From a population of mixed sinistral and dextral snails, a sinistral female and a dextral male are chosen. All the offspring are dextral. When the female offspring are mated, 50% produce only sinistral snails and the other 50% produce only dextral snails.
-This form of inheritance is called

A) maternal inheritance.
B) sex-limited inheritance.
C) sex-linked inheritance.
D) maternal effect.
E) partial penetrance.