Humans have 23 pairs of chromosomes, for a total of 46 chromosomes.
In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39
Answer Two sets of chromosomes present in human beings 2n=46. During formation of gametes, meiosis takes place in which chromosome number is reduced into half. hence only one set of chromosomes are present in human gamet.
