Asexual Reproduction

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b3r
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Asexual Reproduction

Post by b3r » Sun Jan 29, 2006 4:47 pm

Hey i need help here..
can someone tell me why homo sapiens never adapted to asexual reproduction even with its many advantages and all..? thanks :D

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Poison
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Post by Poison » Sun Jan 29, 2006 6:38 pm

Do you have a method for us to reproduce asexually? Maybe mitosis? :lol:
And sexual reproduction has many advantages.
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mith
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Post by mith » Sun Jan 29, 2006 7:20 pm

because there's also disadvantages?
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

b3r
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Post by b3r » Mon Jan 30, 2006 5:05 am

haha i know it's impossible for homo sapiens to actually reproduce asexually but the disadvantages of sexual reproduction such as the difficulty in finding mates, long development time of embryo, useful genetic combinations being broken down, lesser offspring produced, requirement for high production of gametes to occur... are so many..why haven't humans evolve to carry out asexual reproduction? i mean bacteria from what i see, has lived a long time through this method of reproduction. -clueless-

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AstusAleator
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Post by AstusAleator » Mon Jan 30, 2006 5:57 am

Asexual reproduction in larger organisms, especially vertebrates, is inefficient. It leads to no genetic variability except in the case of random mutations.
The evolutionary advantage of sexual reproduction is variation in the gene pool due to crossing over.
Micro-organisms can reproduce asexually because of their high fecundity. The random mutations that occur keep their genes variable.
What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"

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AstusAleator
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Post by AstusAleator » Tue Jan 31, 2006 1:50 am


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