Freckles Are Caused by a Dominant Allele

question 30

Multiple Choice

Freckles are caused by a dominant allele. A man has freckles but one of his parents does not have freckles. What is the man's genotype?

• A) homozygous dominant
• B) homozygous recessive
• C) heterozygous
• D) heterologous
• E) homologous

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Definitions:

Pruning

The process of reducing or eliminating neural connections in the brain that are not used, which serves to streamline cognitive functioning.

Neurons

Specialized cells in the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Visual Acuity

The clarity or sharpness of vision, measured by the ability to discern letters or numbers at a given distance according to a fixed standard.