Question

how many pairs of sex chromosomes do humans have?
options: 2, 46, 1, 23

Explanation:

Humans have a total of 23 pairs of chromosomes, of which only 1 pair is sex chromosomes (XX in females, XY in males). The other 22 pairs are autosomes. The number 46 is the total number of individual chromosomes, not pairs of sex chromosomes; 23 is the total number of chromosome pairs (autosomes + sex chromosomes); 2 is incorrect as there is only one pair of sex chromosomes.

Answer:

1