Coat Color in One Breed of Mice Is Controlled by Incompletely

question 53

Multiple Choice

Coat color in one breed of mice is controlled by incompletely dominant alleles so that yellow and white are homozygous while cream is heterozygous.The cross of two cream individuals will produce

• A)all cream offspring.
• B)equal numbers of white and yellow mice, but no cream offspring.
• C)equal numbers of white and cream mice.
• D)equal numbers of yellow and cream mice.
• E)equal numbers of white and yellow mice, with twice as many creams as the other two colors.

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Definitions:

Skull Fracture

A type of bone fracture specifically affecting the cranium (the bones that encase the brain).

Oculovestibular Response

A neurologic test involving the stimulation of the vestibular system in the inner ear to assess brainstem function.

Doll's Head Maneuver

A neurological test that assesses the reflexive movement of the eyes in response to movement of the head, used to evaluate brainstem function.

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