Joan Is Phenotypically Normal but Had a Child with the Autosomal

question 35

Multiple Choice

Joan is phenotypically normal but had a child with the autosomal recessive disease cystic fibrosis (CF) from a previous marriage.Joan's father has hemophila A, a sex-linked recessive condition where the blood fails to clot properly.Her father has survived due to recent treatment advances.Joan now intends to marry Bill, who is also phenotypically normal but who has a sister, Jill, with CF.Bill's parents are phenotypically normal, and there is no history of hemophilia A in his family.Assume that Joan and Bill do marry and have a child.What is the probability that this child will have CF, but will not have hemophilia A ? (Hint: This problem requires that you utilize concepts from Chapter 3 as well as Chapter 4.)

• A)1/8
• B)1/12
• C)1/24
• D)3/32
• E)5/32

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Definitions:

Mental Illness

A wide range of mental health conditions that affect mood, thinking, and behavior.

Psychiatry

A branch of medicine focused on the diagnosis, treatment, and prevention of mental, emotional, and behavioral disorders.

Alphanumeric Coding System

A code that contains both letters and digits, used for classification, identification, and sorting purposes.

Medical Coder

A health profession responsible for converting diagnoses, procedures, medical services, and equipment into universal medical alphanumeric codes.