What is imprinting and what is the role of DNA methylation in it?
What will be an ideal response?
Ans: Imprinting occurs when an allele is expressed differently depending on the parent from which it was inherited. Methylation is often the difference; a fully methylated allele is usually inactive, while an unmethylated allele is expressed. Typically, offspring may receive a methylated allele from the female parent and an unmethylated allele from the male parent.
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Fill in the blank(s) with the appropriate word(s).
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