dna

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oscar91
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dna

Post by oscar91 » Wed Mar 15, 2006 9:29 pm

which cells have dna, white blood cells or red blood cells?

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x_forensics=life_x
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Post by x_forensics=life_x » Wed Mar 15, 2006 9:44 pm

Red blood cells do not have DNA. They do have RNA, though. The White blood cells contain the DNA.

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canalon
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Post by canalon » Thu Mar 16, 2006 3:16 am

Not true, red blood cells have DNA... in birds for example. Otherwise correct. But maybe you could develop a little bit more your questions....
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Post by mercuryy » Sun Mar 19, 2006 11:31 pm

Canalon wrote:Not true, red blood cells have DNA... in birds for example. Otherwise correct. But maybe you could develop a little bit more your questions....


really? never know red blood cells in bird have DNA. but human red blood cells doesn't contain dna right? since they don't have a nucleus and chromosomes?

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MrMistery
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Post by MrMistery » Mon Mar 20, 2006 7:31 pm

Yes human blood cells don't have DNA. There is a thread in the cell bio forum with pictures about the shape of red blood cells. In every other animal except mamals, RBC have DNA and a nucleus
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Re: dna

Post by Djpatrick » Thu Mar 23, 2006 2:55 pm

oscar91 wrote:which cells have dna, white blood cells or red blood cells?


WBC has got DNA and RBCs are called enucleated cells (i.e., no DNA). In the course of evolution they lost nucleus in order to give maximum space for hemoglobin for efficient respiration.

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