Multiple choice The number of chromosomes in human sperms is 46 23 21 42 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Human sperm cells contain 23 chromosomes (haploid number), which is half the 46 chromosomes found in somatic cells. This ensures that when sperm fertilizes an egg (also 23 chromosomes), the resulting zygote has the normal diploid number of 46.