Galactosemia-a rareautosomal-recessive disease
Biology
Judy and Sam are thinkingof having children, but Sam’s brother has galactosemia (a rareautosomal, recessive disease) and Judy’s great-grandmother also hadgalactosemia. Judy has a sister who has three children, none ofwhom have galactosemia. What is the probability that Sam and Judy’sfirst child will be a daughter with galactosemia?
