The term "genomic imprinting" refers to the phenomenon of gene expression dependence on the mode of inheritance. A typical example of this phenomenon is the control of the expression of the growth factor IGF-II. Genomic imprinting is termed "epigenesist," which is defined by which of the following?
A) gene expression results from regulated levels
Of DNA methylation
B) gene expression that is restricted to a specific cell lineage
C) gene regulation is exerted by sex-type specific factors
D) genotype differences are not reflected by phenotype differences
E) phenotype differences are independent of genotype variation

Question

Quizplus · Accepted Answer

The term epigenetics is used to define the mechanism by which changes in the pattern of inherited gene expression occur in the absence of alterations or changes in the nucleotide composition of a given gene. A literal interpretation is that epigenetics mean "in addition to changes in genome sequence."

The Term "Genomic Imprinting" Refers to the Phenomenon of Gene