Biology 3rd Edition by Peter Russell, Paul Hertz, Beverly McMillan

Exercise 7

Normal ears in a certain mammal are perky; mutants have droopy ears.In males of these mammals, the gene encoding perky ears is transcribed only from the female parent.This is because the gene from the male parent is silenced by methylation.If the maternal gene is mutated:
A)male offspring have droopy ears.
B)offspring have perky ears.
C)male offspring have one droopy ear and one perky ear.
D)the genetic mechanism is called alternative splicing.
E)this is an example of posttranscriptional regulation.