Which of the following is NOT a theory of epigenetics explaining how cells can change gene function without changing the DNA base sequence?
A) Modification of chromosomal proteins
B) Altering transcription and translation with noncoding RNA
C) Mutations causing new beneficial alleles
D) Modification of DNA

Question

Quizplus · Accepted Answer

Epigenetics involves changes in gene expression that do not involve alterations to the underlying DNA sequence. Mutation (choice C) directly changes the DNA sequence, creating new alleles, and thus does not fit the definition of epigenetic mechanisms, which include modifications to chromosomal proteins, noncoding RNA's role in altering gene expression, and direct modifications to DNA without changing its sequence.

Which of the Following Is NOT a Theory of Epigenetics