Katade danna mole thiyenne???

x-pert

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"If there has been a first man he must have been born without father or mother -- which is repugnant to nature. For there could not have been a first egg to give a beginning to birds, or there should have been a first bird which gave a beginning to eggs; for a bird comes from an egg." The same he held good for all species, believing, with Plato, that everything before it appeared on earth had first its being in spirit."
- Aristotle 384-322 BC -




In nature, living things evolve through changes in their DNA. In an animal like a chicken, DNA from a male sperm cell and a female ovum meet and combine to form a zygote -- the first cell of a new baby chicken. This first cell divides innumerable times to form all of the cells of the complete animal. In any animal, every cell contains exactly the same DNA, and that DNA comes from the zygote.

Chickens evolved from non-chickens through small changes caused by the mixing of male and female DNA or by mutations to the DNA that produced the zygote. These changes and mutations only have an effect at the point where a new zygote is created. That is, two non-chickens mated and the DNA in their new zygote contained the mutation(s) that produced the first true chicken. That one zygote cell divided to produce the first true chicken.

Prior to that first true chicken zygote, there were only non-chickens. The zygote cell is the only place where DNA mutations could produce a new animal, and the zygote cell is housed in the chicken's egg. So, the egg must have come first.

http://science.howstuffworks.com/question85.htm
 

nEoN_wHitE

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  • May 4, 2006
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    Inside a neon light
    x-pert said:
    "If there has been a first man he must have been born without father or mother -- which is repugnant to nature. For there could not have been a first egg to give a beginning to birds, or there should have been a first bird which gave a beginning to eggs; for a bird comes from an egg." The same he held good for all species, believing, with Plato, that everything before it appeared on earth had first its being in spirit."
    - Aristotle 384-322 BC -






    http://science.howstuffworks.com/question85.htm
    budu ammooooooooooooooooooooooooooooo :lol::lol:
    meya dinum wagee :lol::P
     

    isuru009

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    Jan 20, 2007
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    Galle
    x-pert said:
    "If there has been a first man he must have been born without father or mother -- which is repugnant to nature. For there could not have been a first egg to give a beginning to birds, or there should have been a first bird which gave a beginning to eggs; for a bird comes from an egg." The same he held good for all species, believing, with Plato, that everything before it appeared on earth had first its being in spirit."
    - Aristotle 384-322 BC -

    http://science.howstuffworks.com/question85.htm

    Happa oya dila thiyenne diga uththarayak:yes: :yes: