When a eukaryotic cell undergoes cellular division, creating two new daughter cells - an error (nondisjunction) in the step shown BELOW can impact the number of chromosomes in the daughter cells' nuclei.

Anaphase I - Definition, Process and Quiz | Biology Dictionary

What is this step?

a
Prophase in endocytosis
b
Anaphase in mitosis
c
Metaphase in mitosis
d
Telophase in meiosis