Organism reproduction with an emphasis on meiotic cell disivion

Organisms can reproduce by two processes, a informal 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. generative processes that involve obtaining patrimonial information from two parents that involve the midpoint of a spermatozoanatozoon and an ballock is called sexual reproduction. A sperm and ball individually carry one 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 numbe r of chromosomes in a cell reduces from diploid to haploid. Meiosis consists of two consequent 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 viii stages of meiosis.

iv of stages are in meiosis I, the physical bole of the division where the homologous chromosomes separate. A homologous chromosome is two chromosomes that watch up a matched pair in a diploid cell. They are the similar length, h ave the same centromere position, and macul! ation 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 well-nigh complex phase and takes up 90% of the time it... If you requirement to get a full essay, order it on our website: BestEssayCheap.com

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