Huntington's disease is a late-onset autosomal dominant disorder. What is the chance that a heterozygous woman with the disease will pass the affected allele on to her children? 0% 75% 100% 25% 50%

A WOMAN IS HETEROZYGOUS FOR A TRAIT CAUSED BY A DOMINANT ALLELE THAT SHOWS 75% PENETRANCE. HER PARTNER IS UNAFFECTED. WHAT IS THE PROBABILITY THAT, IF SHE HAS A CHILD, IT WILL BE AFFECTED? (HINT: WHAT'S THE CHANCE SHE WILL PASS THE ALLELE ON TO HER CHILD AND THAT THE CHILD WILL SHOW THE TRAIT?)

If this is an autosomal recessive disorder, what is the probability that the first child of individuals III-1 and III-6 will be affected? 1

Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition.  What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?)     0%     1/4 or 25%     2/4 or 50%     3/4 or 75%     4/4 or 100%