Jill is heterozygous for gene A and is going to have a child with Jack, who is homozygous recessive for gene A.Which of the following offspring genotypes could result from the fertilization of an egg that had undergone nondisjunction in meiosis I with a normal haploid sperm? Hint: It may be helpful to sketch the outcome of nondisjunction to solve this problem.
Which of the following offspring genotypes could result from the fertilization of an egg that had undergone nondisjunction in meiosis II with a normal haploid sperm? (Because a nondisjunction event in meiosis II could involve the chromosome containing gene A or the chromosome containing gene a, be sure to consider both possibilities in your final answer .)
O If Jack and Jill have a child with an Aaa genotype, during which meiotic division, and in which parent, could nondisjunction have occurred?
O If Jack and Jill have a child with an AAa genotype, during which meiotic division, and in which parent, could nondisjunction have occurred?
O If Jack and Jill have a child with an aaa genotype, during which meiotic division, and in which parent, could nondisjunction have occurred?