Eukaryotic Gene Regulation Video Lessons

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Problem: Monozygotic twins have identical DNA sequences, yet twins can differ in some physical orbehavioral traits.What evidence suggests that epigenetic effects may cause these penotypic differences in monozygotic twins?A. Younger twins have more similar DNA methylation and histone acetylation patterns than older twins.B. Older twins increase DNA methylation, whereas younger twins increase histone acetylation.C. Younger twins increase DNA methylation, whereas older twins increase histone acetylation.D. Older twins have more similar DNA methylation and histoe acetylation patterns than younger twins.

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The similarity of DNA sequence between twins would usually carry the expectation that they would be similar in virtually all physical aspects. However, this is not the case for many. This is because of their differences in gene expression. Note that genetic expression is still differently regulated even between genetically identical individuals.

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Problem Details

Monozygotic twins have identical DNA sequences, yet twins can differ in some physical orbehavioral traits.

What evidence suggests that epigenetic effects may cause these penotypic differences in monozygotic twins?

A. Younger twins have more similar DNA methylation and histone acetylation patterns than older twins.

B. Older twins increase DNA methylation, whereas younger twins increase histone acetylation.

C. Younger twins increase DNA methylation, whereas older twins increase histone acetylation.

D. Older twins have more similar DNA methylation and histoe acetylation patterns than younger twins.

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Our tutors have indicated that to solve this problem you will need to apply the Eukaryotic Gene Regulation concept. You can view video lessons to learn Eukaryotic Gene Regulation. Or if you need more Eukaryotic Gene Regulation practice, you can also practice Eukaryotic Gene Regulation practice problems.