Start studying Biology- Meiosis; Meiosis 1 and Meiosis 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
diagram of meiosis simple image via www.yourgenome.org diagram of meiosis labeled image via www.thinkerlife.fun. Before meiosis starts the normally diploid DNA has been duplicated. This means there are 4 copies of each gene, present in 2 full sets of DNA, each set having 2 alleles. In the diagram below, the red chromosomes are the ones inherited from the mother, the blue from the father.
One parent cell produces 4 daughter cells, each having half the chromosome number and DNA amount. It occurs in germ cells to produce gametes. It also known as reductional division.Meiosis comprises meiosis I and meiosis II. Each one includes Prophase, Metaphase, Anaphase and Telophase.
After Cytokinesis I, the two haploid daughter cells go through interkinesis before they enter Meiosis II To help students search for a topic easily, all the
Meiosis I. As in mitosis, the cell grows during G 1 phase, copies all of its chromosomes during S phase, and prepares for division during G 2 phase. During prophase I, differences from mitosis begin to appear. As in mitosis, the chromosomes begin to condense, but in meiosis I, they also pair up.
Phases of Meiosis 1 and Meiosis 2 During meiosis I, a cell is divided into two, and in meiosis II, further division takes place, resulting in a total of four haploid cells. Before the start of the process, the parent cell goes through a stage of preparation called the interphase.