Genomic imprinting is generally due to the addition of methyl (-CH₃) groups to C nucleotides and chemical histone changes to silence a given gene. If this depends on the sex of the parent who transmits the gene, which of the following statements must be true?
A) Genes required for early development stages must not be imprinted.
B) Methylation of this kind must occur more in males than in females.
C) Methylation must be reversible in ovarian and testicular cells.
D) The imprints are transmitted only to gamete-producing cells.

Question

Quizplus · Accepted Answer

Methylation must be reversible in ovarian and testicular cells to reset the imprinting pattern according to the sex of the parent transmitting the gene.

Genomic Imprinting Is Generally Due to the Addition of Methyl