Which of the Following Is NOT a Theory of Epigenetics

question 85

Multiple Choice

Which of the following is NOT a theory of epigenetics explaining how cells can change gene function without changing the DNA base sequence?

• A) Modification of chromosomal proteins
• B) Altering transcription and translation with noncoding RNA
• C) Mutations causing new beneficial alleles
• D) Modification of DNA

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Definitions:

Hilum

The part of an organ where blood vessels, nerves, and other structures enter or exit.

Simple Squamous Epithelium

A single layer of flat cells that lines surfaces involved in diffusion, osmosis, or filtration, such as blood vessels and air sacs of lungs.

Smooth Muscle

Involuntary, non-striated muscle found within the walls of organs and structures such as the esophagus, stomach, intestines, bronchi, uterus, urethra, bladder, and blood vessels.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, known for their role in producing and secreting mucus.