One Epigenetic Change That Can Affect the Expression of a Gene

question 1

Multiple Choice

One epigenetic change that can affect the expression of a gene is methylation,which is

• A)the subtraction of an organic molecule from DNA
• B)the addition of an organic molecule to DNA
• C)the addition of RNA to DNA
• D)the effect of hormones on DNA

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Definitions:

Epiphyseal Plate

A layer of cartilage located at the end of long bones that is responsible for the longitudinal growth of bones during childhood and adolescence.

Bone Growth

Bone growth refers to the process by which bones increase in size, including lengthening during childhood and adolescence and changing in density and strength throughout life.

Epiphysis

The end part of a long bone, which is initially separated from the main bone by a growth plate, but later fuses with it.

Appositional Bone Growth

The process by which bones increase in diameter and thickness through the addition of bone tissue at the surface.