1. Distinguish between somatic and reproductive cell division and explain the importance of each.
- Somatic cell division occurs in all human cells, except gametes, involving replicating all its 43 chromosomes to pass their genes to the next generation of cells which are diploid (2n) cells. This particular type of cell division replaces dead or injured cells and add new ones during tissue growth. Reproductive cell division results in gametes or haploid (n) cells containing 23 chromosomes. This type of cell division occurs during the process of sexual reproduction where the union of two different gametes (fertilization) results in a new organism.
2. What is the significance of interphase?
- Going through the interphase is a prerequisite for cell division. Interphase involves the replication of DNA as well as the production of additional organelles and cytosolic components before cell division. It is important that the cell goes through this process first such that the replicated cell would be able to function and perform its role within the human body properly.