Organism reproduction with an emphasis on meiotic cell disivion

Organisms can reproduce by two processes, a intragroup and sexual reproduction. Asexual reproduction is the production of offspring by a single parent. Offspring produced asexually inherit their desoxyribonucleic acid from exclusively mavin parent and are ancestralally identical to that parent. reproductive processes that involve obtaining genetical information from two parents that involve the bosom of a spermatozoon and an ballock is called sexual reproduction. A sperm and crackpot individually carry unrivaled set of genetic information. Egg and sperm cadres are collectively known as gametes. Gametes are formed by a kind of sales booth division called mitosis. The fusion of a sperm from the father and the egg cells from the mother is known as fertilization. The toping fertilized egg is called a zygote, and is diploid. The zygote consists of two haploid sets of chromosomes, one from the mother and one from the father. In the meiotic process of cell division the nu mber of chromosomes in a cell reduces from diploid to haploid. Meiosis consists of two resultant stages of cell division, called meiosis I and meiosis II. As a result of meiosis four daughter cells (gametes) are produced with still half(prenominal) as many chromosomes as the starting cell. Each gamete has one member of each homologous chromosome pair. There are octad stages of meiosis.

iv of stages are in meiosis I, the physical organic structure of the division where the homologous chromosomes separate. A homologous chromosome is two chromosomes that depict up a matched pair in a diploid cell. They are the s imilar length, have the same centromere posi! tion, and staining pattern and let genes for the same characteristics. Like mitosis, the stages of meiosis I are preceded by an interphase where the number of chromosome replicate. Prophase I of meiosis is the almost complex phase and takes up 90% of the time it... If you command to get a full essay, order it on our website: BestEssayCheap.com

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