If cell X enters meiosis,and nondisjunction of one chromosome occurs in one of its daughter cells during meiosis II,what will be the result at the completion of meiosis?
A)All the gametes descended from cell X will be diploid.
B)Half of the gametes descended from cell X will be n + 1,and half will be n - 1.
C)One-fourth of the gametes descended from cell X will be n + 1,1/4 will be n - 1,and 1/2 will be n.
D)All of the gametes will have the normal number of chromosomes.

Question

Quizplus · Accepted Answer

Nondisjunction during meiosis II results in the production of two gametes with an extra chromosome (n + 1) and two gametes with a missing chromosome (n - 1). Therefore, one-fourth of the gametes will be n + 1, one-fourth will be n - 1, and half will be the normal number of chromosomes.

If Cell X Enters Meiosis,and Nondisjunction of One Chromosome Occurs