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Sunday, January 6, 2008

Sexual Reproduction

Sexual Reproduction is the biological process which new individuals are produced. Reproduction is a vital feature of every living organism. Without Reproduction, there will be no continuity and thus a living organism will likely become extinct.

According to wikipedia "Reproduction is the biological process by which new individual organisms are produced. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. The known methods of reproduction are broadly grouped into two main types: sexual and asexual.

In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of a bacterial cell into two daughter cells is an example of asexual reproduction. Asexual reproduction is not, however, limited to single-celled organisms. Most plants have the ability to reproduce asexually.

Sexual reproduction requires the involvement of two individuals, typically one of each sex. Normal human reproduction is a common example of sexual reproduction."


Two types of Reproduction:
Asexual and Sexual Reproduction

Sexual reproduction is
is the formation of a new individual following the union of two gametes. A union that results in increasing genetic diversity of the offspring. It is characterized by two processes: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the restoration of the original number of chromosomes. During meiosis, the chromosomes of each pair usually cross over to achieve genetic recombination which gives rise to variations in living organisms.


Asexual reproduction is the formation of new individuals from the cell(s) of a single parent. Asexual reproduction is a form of reproduction which does not involve meiosis, or fertilization. This type of reproduction requires only one parent.


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