BIOLOGY - Reproduction (or procreation)

May 20th, 2015
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Reproduction (or procreation) is the biological process by which new "offspring" individual organisms are produced from their "parents". Reproduction is a fundamental feature of all

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BIOLOGYReproduction(orprocreation) is thebiological processby which new "offspring" individualorganismsare produced from their "parents". Reproduction is a fundamental feature of all knownlife; each individual organism exists as the result of reproduction.TYPES The known methods of reproduction are broadly grouped into two main types:sexualandasexual.In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of abacterialcell into two daughter cells is an example of asexual reproduction. Asexual reproduction is not, however, limited tosingle-celled organisms. Most plantshave the ability to reproduce asexually and the ant speciesMycocepurus smithiiis thought to reproduce entirely by asexual means.Sexual reproduction typically requires the involvement of two individuals or gametes, one each from opposite type ofsex.Sexual reproduction is abiological processby which organisms create descendants that have a combination ofgeneticmaterial contributed from two (usually) different members of the species. (Self-fertilization requires only one organism.) Each of two parent organisms contributes half of the offspring's genetic makeup by creatinghaploidgametes. Most organismsform two different types of gametes.Human reproductionis any form ofsexual reproductionresulting in theconception of a child, typically involvingsexual intercoursebetween a man and a

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