Prader-Willi syndrome is caused by a mutation in an autosomal paternally expressed (maternally imprinted) gene. Label the following statements 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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Prader-Willi syndrome is caused by a mutation in an autosomal maternally imprinted gene. Label the following statements as true or false, assuming that the trait is $100 \%$ penetrant. a. Sons of affected males have a $50 \%$ chance of showing the syndrome. b. Daughters of affected males have a $50 \%$ chance of showing the syndrome. c. Sons of affected females have a $50 \%$ chance of showing the syndrome. d. Daughters of affected females have a $50 \%$ chance of showing the syndrome.
Suman K.
Prader-Willi syndrome is caused by a mutation in a maternally imprinted gene. Answer the following 5 true/false questions, assuming that mates are normal. Note: the questions are not asking if offspring are normal or not normal, only whether or not they show PW syndrome. 1. Half of the sons of affected males will show Prader-Willi syndrome. True or false? 2. Half of the daughters of affected males will show Prader-Willi syndrome. True or false? 3. Half of the sons of affected females will show Prader-Willi syndrome. True or false? 4. Half of the daughters of affected females will show Prader-Willi syndrome. True or false? 5. What syndrome will show in the offspring of affected females (marrying normal males)? a. 1/2 Prader-Willi, 1/2 Angelman's b. All Prader-Willi, 0 Angelman's c. 0 Prader-Willi, All Angelman's
Adi S.
Is this statement true or false? A son can inherit an X-linked recessive allele from his father.
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