Genetic Code Question

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

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TheMaker420
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Genetic Code Question

Post by TheMaker420 » Fri Feb 09, 2007 2:29 pm

Quick question...

If there are only 23 pairs of chromosomes, why aren't there more people with the same genetic code?

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MrMistery
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Post by MrMistery » Fri Feb 09, 2007 2:37 pm

because the genetic information is not coded for by the number of chromosomes, but by what DNA nucleotides are in them
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Post by TheMaker420 » Fri Feb 09, 2007 2:43 pm

Thanks a lot bro. :)

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Post by TheMaker420 » Fri Feb 09, 2007 4:46 pm

Sorry for the double post. But do you know how we get from one single cell to trillions of complex organisms?

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Post by MrMistery » Fri Feb 09, 2007 7:42 pm

If you have a test and don't know this stuff, you sure are in trouble. It's called mitosis, look it up.
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Post by Locus » Fri Feb 09, 2007 11:38 pm

TheMaker420 wrote:Sorry for the double post. But do you know how we get from one single cell to trillions of complex organisms?

anybody don't know exactly how it is happend - cells divide but what and by wich way make them phenotipically(but not genotypically!) different from each athere - it is a very, very huge question...
Evolution will arrange everything

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Post by Abstract » Sat Feb 10, 2007 3:16 pm

Locus, what makes cells phenotypically different but genotypically the same is control of gene expression. Every cell in your body (except gametes) could have potentially been another type of cell, but by controlling which genes are active and which genes are dormant, we can control what a developing cell becomes.

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Post by satrohraj » Thu Feb 15, 2007 5:06 pm

TheMaker420 wrote:Sorry for the double post. But do you know how we get from one single cell to trillions of complex organisms?

Its called evolution..
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Post by Locus » Sun Feb 18, 2007 2:40 pm

Abstract wrote:Locus, what makes cells phenotypically different but genotypically the same is control of gene expression. Every cell in your body (except gametes) could have potentially been another type of cell, but by controlling which genes are active and which genes are dormant, we can control what a developing cell becomes.

Enchansers and sielencers can differ profil of expression, but anybody know what direct reasons make nerve cell differ from.... skin cell? Yes, prophil of expression is differe, and differ becouse there is different enchansers and sielencers is activated and they activated becouse different proteins, and so on... and were end of thos thinks?
Evolution will arrange everything

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