Which statement describes a consequence of DNA methylation?
A)The trait associated with the methylated gene will be more visible.
B)The basic DNA sequence of the methylated gene will be altered.
C)The tumor-suppression genes will be activated.
D)The methylated gene will not be expressed.

Question

Quizplus · Accepted Answer

DNA methylation is a process of adding a methyl group to the cytosine base of a DNA molecule. This modification alters the physical structure of DNA and may result in inhibition or prevention of the transcription of a gene. Methylation can also disable genes that are normally used as tumor suppressors, which can increase the likelihood of cancer development. Therefore, a consequence of DNA methylation is that the methylated gene will not be expressed.

Which Statement Describes a Consequence of DNA Methylation