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Parthenogenesis vs Sexual Reproduction

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Parthenogenesis vs Sexual Reproduction
Parthenogenesis vs. Sexual Reproduction

Jorge Pablo Velasco Borda

Introduction:

Parthenogenesis is a type of reproduction in which the sperm does not fertilized the ovum. In parthenogenesis some chemical agents fertilize the ovum most of times because the female does not have a male to have sex with. That’s the case of Flora a Komodo dragon that live at the Chester Zoo in England (Chiang. M). Flora gave birth to seven babies without having a male. Sexual reproduction is when a sperm fertilize an ovum and the baby or egg is formed. Both spend energy but which is better for us humans?

Results:

Lots of animals use sexual reproduction to produce an offspring with the chromosomes and genetic contributions of two different individuals that’s very good for the individual because if one of his parents has a disease and the other person is immune to it he could born being immune to that disease but also the individual could born with the different genetic diseases their parents could have (ANBG 2012). In Parthenogenesis the individual inherit all his genetic contribution from his “mother” (scienciejarnk). In some cases the offspring inherit all the characteristics of his mother and it’s basically equal so the offspring inherits the diseases and characteristics of the mother, but also the offspring could be male in most of animals, that’s the case of Daphnia Magna. This specie could reproduce sexually but in natural populations parthenogenesis is the most common mode (Herbert, Ward 1972). Sexual reproduction is the mode of reproduction that most animals use but is the one that use more energy. Individuals spend energy looking for the mate to pair with and males doesn’t have to use energy in reproduction but if the offspring is born by parthenogenesis it wont live long (researchstowers). Animals that live in places where it’s difficult to live long use parthenogenesis because they reproduce faster and more so for humans isn’t good parthenogenesis we have



Cited: Works Chiang, M. (s.f.). MOM? DAD? Science World . Science Jrank. (s.f.). Obtenido de http://science.jrank.org/pages/5047/Parthenogenesis-Sexual-vs-non-sexual-reproduction.html Australian Byophytes. (2012). Recovered the 16th of April of 2013, from http://www.anbg.gov.au/bryophyte/sexual-reproduction.html Research Stowers Institute. (s.f.). Recovered the 17th of April of 2013, From http://research.stowers-institute.org/baumannlab/Parthenogenesis.htm WARD, P. D. iNHERITANCE DURING PARTHENOGENESIS IN DAPHNIA MAGNA. University of Cambridge, Genetics, Cambridge.

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