The Probability of Producing a Normal Child by Two Parents

question 53

Multiple Choice

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is ____.  

• A) 0%
• B) 25%
• C) 50%
• D) 75%
• E) 100%

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Definitions:

Y Chromosome

A sex chromosome found in mammals, including humans, that is typically associated with male characteristics and is paired with an X chromosome in males.

Hormones

Chemical messengers produced by glands in the body, which regulate various physiological processes and behaviors.

Cephalocaudal Pattern

A developmental principle where growth occurs starting from the head (cephalo) and moves towards the feet (caudal), highlighting a directional pattern of physical growth in humans.

Prenatal Development

The progression from conception to birth, marked by growth and development inside the womb.