Alteration of Histones by Addition of Methyl and Acetyl Groups

question 8

Multiple Choice

Alteration of histones by addition of methyl and acetyl groups to particular amino acids

• A)changes B-DNA to Z-DNA.
• B)results in the remodeling of chromatin that can activate or inhibit gene expression.
• C)creates G bands seen after Giemsa staining of chromosomes.
• D)helps preserve telomeres during DNA replication.
• E)alters the denaturation and renaturation of DNA.

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Definitions:

Cell Body

The spherical part of a neuron that contains the nucleus and connects to the dendrites, which bring information to the neuron, and the axon, which sends information to other neurons.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.

Genetic Information

Data about an organism's genes, including variations and mutations, that can influence health, traits, and disease risk.

Axons

Long, slender projections of neurons that transmit electrical impulses away from the neuron's cell body to other neurons, muscles, or glands.