Genetics Flashcards
When counseling a couple in which the man has an autosomal recessive disorder and the woman has no gene for the disorder, the nurse uses Punnett squares to show the couple the probability of their having a child with the disorder. Which statement by the nurse is accurate?
A “Each child would be a carrier of the disorder.”
B “Each child would have 50% chance of having the disorder.”
C “Your male children will display characteristics of the disorder.”
D “I can provide information about adoption if it would be helpful.”
A “Each child would be a carrier of the disorder.”
Which statement most accurately describes autosomal dominant genetic disorders?
A The likelihood of the second child also having the condition is 100%.
B The risk factor remains the same with each child born in the family.
C Disease carries a one-in-four risk of the second child also having the disorder.
D Conditions often skip generations with this dominant pattern.
B The risk factor remains the same with each child born in the family.
A male patient with hemophilia asks the nurse if his children will be hemophiliacs (which is x-linked transmitted). His female partner is healthy. Which response by the nurse is accurate?
A “All of your children will be at risk for hemophilia.”
B “Hemophilia is a multifactorial inherited condition
C “Only your male children are at risk for hemophilia.”
D “Your female children will be carriers for hemophilia.”
D “Your female children will be carriers for hemophilia.”
