DNA is replicated before this process In animals results in

DNA is replicated before this process In animals, results in the production of sperm nuclei and egg nuclei Tetrads align at the middle of the cell Pairing of homologous chromosomes is necessary Ends up with four nuclei from one original nucleus Is necessary for a human fetus to develop Chromosomes align in a single file line in the middle of the cell at some point in the process.

Solution

41) Both

42) Meiosis

43) Meiosis

44) Meiosis

45) Meiosis

46) Mitosis

47) Both

During mitosis, the chromosomes of parent cells will be duplicated to get equally distributed among two daughter cells. Whereas meiosis is a reduction division, where one diploid cell will divide to generate haploid cells. DNA replication takes place during mitosis as well as during meiosis interphase I. Meiosis produces four cells with only one set of chromosomes (n), so it is involved in the production of sperms and eggs and these during fertilization fuse to produce a fertilized egg (2n). Tetrads are formed with the pairing up of homologous chromosomes during the process of Crossing-over, and it occurs only during meiosis. It is the mitosis, or normal cell division which helps the human fetus to develop through deposition of extracellular materials as the embryo grows.