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skjeev
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06.28.06 (2 years ago)
#11
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one copy from mom ,another from dad
so,real material is only in one copy so;
another copy is just x-tra!like zerox[u can call like that,
or see in autosomal recessive for eg-since u hav 2 copies u seem to survive because of extra ones!!]
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lazybonezzz
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06.28.06 (2 years ago)
#12
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thanx guys
i think i got it
therer 2 alleles of a gene in r somatic cells
so there r 30,000 -40,000 genes in a human being
& two copies of each of these genes r the alleles!
c this link---
thats why harri says 30000 genes r divided in 23 chromosomes & also that 23 pairs encode for 30000 genes
some definitions 2 clarify the basics---Allele.---An alternate form of a gene, in other words a gene that provides instructions for a slightly different version of the same polypeptide as the other member of a gene pair at the same location on a chromosome.
Alleles are a way of identifying the two members of a gene pair which produce opposite contrasting phenotypes. An allele of a gene is it's partner gene, for example b is an allele of B and vice versa. When the alleles are identical, the individual is homozygous for that trait. While if the pair is made of two different alleles, the individual is heterozygous.(http://library.thinkquest.org/20465/genes.html)
am i rite? 
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skjeev
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06.29.06 (2 years ago)
#13
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I think anybody can now get it..
[it is bit confusing]
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Bruno
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06.29.06 (2 years ago)
#14
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latest books say 30,000 genes
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vitamin_k
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07.01.06 (2 years ago)
#15
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hey bruno sir!!!
how are u??
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Bruno
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07.03.06 (2 years ago)
#16
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Fine here along with the 30000 genes
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skjeev
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07.03.06 (2 years ago)
#17
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and 30000 alleles!?
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lazybonezzz
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07.03.06 (2 years ago)
#18
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| skjeev wrote: |
| and 30000 alleles!? |
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vitamin_k
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07.03.06 (2 years ago)
#19
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| Quote: |
Fine here along with the 30000 genes
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Jayanth1983
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ganong
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07.08.06 (2 years ago)
#20
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30000 - ganong says so...
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