Polydactyly Is Expressed When an Individual Has Extra Fingers And/or

question 40

Multiple Choice

Polydactyly is expressed when an individual has extra fingers and/or toes.Assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits.Having extra digits is caused by a dominant allele.The couple has a son with normal hands and feet,but the couple's second child has extra digits.What is the probability that their next child will have polydactyly?

• A) 1/32
• B) 1/8
• C) 7/16
• D) 1/2
• E) 3/4

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Definitions:

Androgen Insensitivity

Androgen insensitivity is a condition in which an individual's body cannot properly respond to male sex hormones, leading to feminization in genetic males.

Newborns

Infants who are in the very first weeks of life following birth, typically considered to be up to one month old.

Sexual Behavior

Actions exhibited by individuals or groups relating to physical intimacy or sexual activity.

Instinctual

Relating to or based on instinct, innate patterns of behavior that are not learned.