Solution: The sex of the offspring is determined by the 23rd pair of chromosomes, which is why it is termed a sex chromosome. So, one pair of chromosomes determines the sex of the individual. So, the correct answer is (a) one.
The number of pair (s) of sex chromosomes in the zygote of humans isa)oneb)twoc)threed)four
The number of pair (s) of sex chromosomes in the zygote of humans isa)oneb)twoc)threed)four