Question

in humans, if nondisjunction led to an individual with a genotype of xo, that person would
multiple choice
display both male and female characteristics.
be female because each cell lacks a y chromosome.
not survive.
be male because each cell has only one x chromosome.

Explanation:

In humans, biological sex is primarily determined by the presence of a Y chromosome. An individual with genotype XO has no Y chromosome, so they develop as female (this condition is Turner syndrome). They do not display both sexes, can survive, and are not male.

Answer:

be female because each cell lacks a Y chromosome.