Question

what process is indicated by the red arrow?
karyotype
nondisjunction
mitosis
crossing over

Explanation:

Nondisjunction is a process in cell division where chromosomes fail to separate properly. In the image, the red - arrowed cell has an extra chromosome (shown by the additional pair), which is a result of nondisjunction. Crossing - over involves exchange of genetic material between homologous chromosomes. Mitosis is a process of cell division resulting in two identical daughter cells. A karyotype is a display of an individual's chromosomes.

Answer:

Nondisjunction