Heritable changes in an animal due to the expression of an allele that is no longer present is known as
A) X chromosome inactivation.
B) discordant inheritance.
C) knockout mutations.
D) prions.
E) paramutations.

Question

Quizplus · Accepted Answer

Paramutations involve heritable changes in gene expression caused by interactions between alleles, where the expression of one allele is altered by another allele that is no longer present. This phenomenon does not fit the descriptions of X chromosome inactivation, discordant inheritance, knockout mutations, or prions.

Heritable Changes in an Animal Due to the Expression of an Allele