Human body is made up to trillons of cells. Why is it necessary for every cell to have the entir set of chromosomes pairs?

Explanation

The necessary information for the growth and development of all the cells is present in the chromosomal genes. The development of an organism - from a fertilized egg, through embryonic and juvenile stages, to adulthood - requires the coordinated expression of sets of genes at the proper times and in the proper places. Hence, it is necessary for every cell to have the entire set of chromosomes (23 pairs).