Answer:
1.) Mitosis and Meiosis
- In mitosis, a somatic cell divides in order to create two identical daughter cells. In meiosis, a germline cell divides twice to create four gametes.
2.) A chromosome consists of two sister chromatids, each made up of tightly wound DNA. On these DNA strands are genes, which are specific sequences of nucleotides.
3.) It is important that the DNA is fully copied before the cell divides because cells always need DNA. If the DNA is not copied, one of the new daughters cells would not contain any DNA. Without DNA, the cell will no longer have the instructions necessary to perform its normal functioning.
