Question

if nondisjunction occurs during anaphase i, the final product of meiosis ii is: two cells with an extra chromosome and two cells missing a chromosome. one cell with an extra chromosome and one cell missing a chromosome. two diploid cells. two haploid cells.

Explanation:

Nondisjunction during anaphase I means homologous chromosomes do not separate properly. This leads to two daughter cells from meiosis I having an abnormal chromosome number (one with an extra homologous pair, one missing a homologous pair). When these cells undergo meiosis II (where sister chromatids separate), the result is two cells with an extra chromosome (from the cell that had an extra homologous pair in meiosis I) and two cells missing a chromosome (from the cell that was missing a homologous pair in meiosis I).

Answer:

two cells with an extra chromosome and two cells missing a chromosome.