Genetics and Reproduction Coursework Example

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Category:
Biology
Level:
College
Type:
A-Level
Pages:
4
Words:
475
Genetics and Reproduction Name: Course: Instructor: Date: Genetics and Reproduction Introduction Research has shown that female snakes in the wild are able to produce offspring devoid of having any interaction with the male species (Smith & Schuett, 2015). This has refuted the claims that asexual reproduction only occurs in invertebrates. Reproduction refers to the process by which a living organism gives rise or birth to another (offspring), but of the same type. Reproduction in the female copperhead snakes is classified into two categories, sexual and asexual, hence the classification as the facultative parthenogenetic class. Asexual Reproduction A nonsexual reproduction is the manner in which an active creature gives birth to a young one devoid of the synthesis of gametes. According to specialists, the copperhead snake (Agkistrodon contortix) do not need a male to reproduce (Smith & Schuett, 2015). This is a situation referred to as parthenogenesis. In the female copperhead snake, parthenogenesis occurs after an unfertilized egg cell develops into an embryo. The females that reproduce asexually are considered to be clones of their female parents. Therefore, the young ones are female. This is because the young ones have two ovaries, but the testes are missing. Parthenogenesis raises the level of homozygosity in the progeny and further suggests that the method is a terminal synthesis automixis. Second polar body combines with the egg nucleus, and thus homozygosity occurs in all the chromosomes, including those involved in determining sex. Extensive homozygosity results in the conservation of species. This is due to the fixing of potentially harmful inherent recombination. Preservation of gene reduction leads to reduced evolutionary adaptation, and therefore species will not vary. Copperhead snakes show facultative parthenogenesis. They, therefore, develop an understanding of parthenogenesis in species of vertebrates that are not scientificall...
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