How Is It Genetically Possible for a Child to Phenotype

question 19

Multiple Choice

How is it genetically possible for a child to phenotype as D-negative?

• A) Both parents are heterozygous D-positive.
• B) Both parents are homozygous D-positive.
• C) Mom is homozygous D-positive, and Dad is heterozygous D-positive.
• D) The sibling is D-positive.

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Definitions:

Gustatory Receptors

Sensory receptors located on the tongue that detect taste.

Olfactory Receptors

Specialized nerve cells located in the nasal cavity that are responsible for detecting odors and sending information to the brain for processing.

Chemoreceptors

Sensory receptor cells that respond to chemical stimuli, involved in senses like taste and smell and the regulation of breathing.

Cutaneous Receptor

Sensory receptors found in the skin that respond to various stimuli such as touch, pressure, temperature, and pain.