When a pregnant female of a particular strain of yellow agouti mice with the agouti viable yellow (A^vy) allele was fed a diet rich in folic acid, the mouse give birth to offspring with mostly brown fur indicating that

Question

Quizplus · Accepted Answer

The correct answer is D because the diet rich in folic acid likely contributed to increased methylation of the retrotransposon promoter region. This hypermethylation would inhibit the expression of the agouti gene, leading to the predominance of brown fur in the offspring. Methylation is a common epigenetic mechanism that can silence gene expression.

When a Pregnant Female of a Particular Strain of Yellow