All species of Great Ape have 48 chromosomes, which is one more pair than humans. Both monkeys and Great Apes reproduce sexually, giving them a Haploid and Diploid number. The Haploid number is half of the Diploid number. It is the number of chromosomes found in a sex cell, or the number of chromosome pairs. The Diploid number is the number of chromosomes in a cell which is not an egg cell or a sperm cell.