1) A man with type A blood marries a woman with type B blood. Their child has type 0 blood. What are the genotypesof these individuals? What other genotypes, and in what frequencies, would you expect in offspringfrom this marriage?
2)
Phenylketonuria (PKU) is an inherited diseasecaused by a recessive allele.If a woman and her husband, who are both carriers,have three children,what is the probability of each of the following?
A) All three children are of normal phenotype.
B) One or more of the three children have the disease.
C) All three childrenhave the disease.D) At least one child is phenotypically normal.
3)
The following is a list of chromosomal alterations. Which one of these would automatically cause two of the others?
A) deletion
B) duplication
C) inversion
D) reciprocal translocation
E) nonreciprocal translocation