If a pair of homologous chromosomes fails to separate during anaphase of meiosis I, what will be the chromosome number of the four resulting gametes with respect to the normal haploid number (n)?
A)n + 1; n + 1; n - 1; n - 1
B)n + 1; n - 1; n; n
C)n + 1; n - 1; n - 1; n - 1
D)n + 1; n + 1; n; n
E)n - 1; n - 1; n; n

Question

Quizplus · Accepted Answer

If homologous chromosomes fail to separate during anaphase I, two gametes will have an extra chromosome (n + 1) and two will have one less (n - 1).

If a Pair of Homologous Chromosomes Fails to Separate During