If the chromosome number for a chimpanzee is 48 How many dya

If the chromosome number for a chimpanzee is 48: How many dyads will it have in a somatic cell in metaphase? How many monads in a somatic cell in anaphase? How many monads in each of the new daughter cells? How many pairs of homologous chromosomes are present in its somatic cells?

Solution

Chimpanzees have 24 chromosomes in their sex cells properly termed gametes. In the somatic cells there there are two sets of chromosomes, each chromosome has another like a pair of shoes. One chromosome out of the two comes from the mother and the other chromosome in the pair belongs to the father. In the gametes there is only one set of chromosomes. When the gamete fuses with the opposite sex gamete the two sets of chromosomes come together and form a somatic cell.

Well in the beginning a somatic cell in the gonads gets ready for mitosis, it replicates its chromosomes so that there are double the somatic number. Then it splits in two, each of which have the somatic number. Then those two cells split in two, each of which have the gamete or sex cell number which is always half the somatic cell number. The whole process is random in that the chromosomes from the mother and father are mixed up in the gametes. Also its random in that the chromosomes in each pair cross over or shuffle a piece of their length with each other. So the chromosomes are unique and not the same as they were in the somatic cells.

The count of homologus chromosomes present in somatic cell is approximately between 23 and 26.