egg fertilization

Genetics as it applies to evolution, molecular biology, and medical aspects.

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mehdi71000
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egg fertilization

Post by mehdi71000 » Tue Mar 06, 2007 2:20 pm

hi every body
i had some doubts about how the dna is formed when the egg is fertelized. i heard one strand from the egg attaches to another strand from the sperm .if this is true and genes are about 1 % diffret in humans and each letter of the strand it has an oppesite letter like C&G T&A so how do they fit togeter? im very comfused :shock:

mehdi71000
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Post by mehdi71000 » Tue Mar 06, 2007 2:40 pm

sorry is it that half the cromozomes comes from sperm andhalf from the egg then they pair up?
if so how they are joint together is it that an enzime is envolved?
thanks

Mhlengi
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Post by Mhlengi » Mon Mar 12, 2007 7:10 am

What I can tell you for now is that half the set of DNA bearing chromosomes comes from the sprem and the other from the egg.Each one has a complementary partner to which it will bind.the binding involves recognition of the complementary partner followed by the formation a centromere to attach the two.If read further into the subject you'll find that genes are are bound to differ in individuals because the trait that we observe is carried in alleles in the chromosome & have different capabilities of being expressed.

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