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28. You are investigating the inheritance of two rare conditions (A and B) in an extended...

28. You are investigating the inheritance of two rare conditions (A and B) in an extended family of thoroughbred racehorses. You have constructed the following pedigree for these conditions.

Circle the inheritance mode of each condition.

28. You are investigating the inheritance of two r

a) Is condition A

X-linked dominant

Autosomal dominant

X-linked recessive

Autosomal recessive

b) Is condition B

X-linked dominant

Autosomal dominant

X-linked recessive

Autosomal recessive

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Answer #1

ans. a) autosomal recessive.

reason-occuring only when only mutated chromosome appearing in an offspring.

no male progeny affected.

ans. b) X- linked recessive

reason-all females are carriers

males are affected.

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