Organism reproduction with an emphasis on meiotic cell disivion

Organisms can reproduce by two processes, a versed 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 pith of a spermatozoanatozoon and an ballock is called sexual reproduction. A sperm and formal individually carry unity set of genetic information. Egg and sperm cadres are collectively known as gametes. Gametes are formed by a kind of cell 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 fertilized ovum, 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 number of chromosomes in a cell reduces from diploid to haploid. Meiosis consists of two incidental stages of cell division, called meiosis I and meiosis II. As a result of meiosis four daughter cells (gametes) are produced with single half(prenominal) as many chromosomes as the starting cell. Each gamete has one member of each homologous chromosome pair. There are eighter stages of meiosis.

iv of stages are in meiosis I, the physical dead body of the division where the homologous chromosomes separate. A homologous chromosome is two chromosomes that pass on up a matched pair in a diploid cell. They are the similar length, ha ve the same centromere position, and staini! ng 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 close complex phase and takes up 90% of the time it... If you destiny to get a full essay, order it on our website: OrderCustomPaper.com

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