Penetrance Specifically Refers to the Expression of Lethal Genes in Heterozygotes

question 21

True/False

Penetrance specifically refers to the expression of lethal genes in heterozygotes.

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Definitions:

Highly Active Fetuses

Fetuses that display above-average movement levels within the womb, which could indicate health and vitality.

Critical Periods

Specific times during development when certain skills or abilities are most easily learned, and the brain is especially sensitive to external influences.

Teratogen

Any agent that can disturb the development of an embryo or fetus, which may cause a birth defect.

Responsive

Being quick to react or respond appropriately to changes or requests, showing sensitivity to the needs or feelings of others.