Teratogens During the Second Trimester Are More Likely to Cause

question 116

Multiple Choice

Teratogens during the second trimester are more likely to cause

• A) social impairments.
• B) either intellectual or social impairments.
• C) physical abnormalities.
• D) intellectual impairments.

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Definitions:

Duplicated

To copy or make a replica of a biological or genetic element, such as a DNA sequence, within an organism.

Methylated DNA

DNA in which methyl groups are added to some bases, often affecting gene expression and involved in gene regulation.

Transcriptionally Inactive

Describes genes or segments of DNA that are not being transcribed into RNA.

Constitutive Genes

Genes that are continuously expressed under normal cellular conditions, providing the basic functions necessary for the cell's survival.