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Prader-Willi syndrome is caused by a mutation in a maternally imprinted gene. Answer the following questions...

Prader-Willi syndrome is caused by a mutation in a maternally imprinted gene. Answer the following questions as true or false, assuming that the trait is 100% penetrant.

a) Half of the sons of affected males will show the syndrome.

b) Half of the daughters of affected males will show the syndrome.

c) Half of the sons of affected females will show the syndrome.

d) Half of the daughters of affected females will show the syndrome.

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Answer #1

a) Half of the sons of affected males will show the syndrome. True

b) Half of the daughters of affected males will show the syndrome. False

c) Half of the sons of affected females will show the syndrome.  False

d) Half of the daughters of affected females will show the syndrome. True.

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