Most Pedigrees Showing the Hypothetical Human Trait Show the Following

question 19

Multiple Choice

Most pedigrees showing the hypothetical human trait show the following characteristics:
• Females are affected twice as frequently as males.
• Affected fathers may have affected daughters but never affected sons.
• Half the children of affected mothers and normal fathers are affected.
What is the MOST likely mode of inheritance for this disorder?

• A) autosomal recessive
• B) autosomal dominant
• C) X-linked recessive
• D) X-linked dominant
• E) Y-linked

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