What Is the Relationship Between Methylation and Genomic Imprinting

question 13

Multiple Choice

What is the relationship between methylation and genomic imprinting?

• A)Differential methylation of DNA in males and females results in only one of the parental alleles being transcriptionally active in the offspring.
• B)DNA methylation silences the alleles inherited from both parents, so no alleles are transcriptionally active.
• C)Reversible methylation of DNA inherited from the father results in the paternal alleles being expressed only late in development.
• D)Reversible methylation of DNA inherited from the mother results in the maternal alleles being expressed only late in development.

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Definitions:

Dinosaur Fossils

Remains or traces of dinosaurs preserved in rock.

First Reptiles

Earliest forms of reptiles, marking the origin and evolution of reptilian species on Earth.

Jawed Fishes

Vertebrates possessing a jawbone, including most modern fish species, enabling varied diets and ecological niches.

Cretaceous Era

A geological epoch that lasted from about 145 to 66 million years ago, at the end of the Mesozoic Era, known for the extinction of dinosaurs.