Albinism (Without Melanin Pigmentation) Is a Recessive Trait

question 51

Multiple Choice

Albinism (without melanin pigmentation) is a recessive trait. A man and woman both show normal pigmentation, but both have one parent who has albinism. What is the probability that their first child will have albinism?

• A) 0
• B) 1/2
• C) 1/4
• D) 1

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Definitions:

Knockout Mice

Genetically engineered mice in which one or more specific genes have been made inoperative to study gene function.

Huntington Disease

A genetic neurodegenerative disorder characterized by motor dysfunction, cognitive decline, and psychiatric symptoms.

Genetic Determinants

Refers to the specific genes and variations in an organism's DNA that contribute to its physical, behavioral, and health-related traits.

Microglial Cell

A type of glial cell located throughout the brain and spinal cord, which acts as the first and main form of active immune defense in the central nervous system.