Marfan Syndrome Is the Result of Inheriting a Single Allele

question 35

Multiple Choice

Marfan syndrome is the result of inheriting a single allele. Individuals with Marfan syndrome are tall and long-limbed, and have both cardiovascular and eye defects. Marfan syndrome is an example of ________.

• A)codominance
• B)homozygous recessive
• C)pleiotropy
• D)incomplete dominance

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Definitions:

Photoreceptor Cells

Specialized neurons in the retina that convert light into signals that can stimulate biological processes.

Innermost Tunic

The deepest layer of a structure, often referring to the inner layer of a blood vessel or other tubular organ.

Rods

Photoreceptor cells in the retina that are sensitive to low light levels and are responsible for night vision.

Photoreceptor Cells

Specialized cells in the retina of the eye that respond to light, enabling vision.