Genetics Practice Questions
1. A man with sickle cell trait mates with a woman without sickle cell trait. What % of their children would have sickle cell? What % would be carriers?
2. A man with sickle cell trait mates with a woman with sickle cell trait. What % of their children would have sickle cell? What % would be carriers?
3. A man with PKU mates with a woman without PKU. What % of their children would have PKU? What % would be carriers?
4. A man who is phenotypically normal but heterozygous for PKU
mates with a woman who is phenotypically normal but heterozygous
for PKU. What % of their children would have PKU? What % would be
carriers?
5. A man with Huntington's mates with a woman without Huntington's.
What % of their children would have Huntington's? What % would be
carriers?
6. A man with Marfan's mates with a woman with Marfan's. What %
of their children would have Marfan's? What % would be carriers?
7. A man without hemophilia mates with a woman who is a carrier
for hemophilia. What % of their children would have hemophilia?
What % would be carriers?
8. A man with hemophilia mates with a woman who is a carrier for
hemophilia. What % of their children would have hemophilia? What
% would be carriers?
9. Which of the above would have negative family histories? 'Positive
family histories?