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DNA analysis

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

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Postby LilKim » Tue Jan 02, 2007 3:39 am

oh yeah... and plastids also contain DNA ... learn more here: http://en.wikipedia.org/wiki/Plastid#In ... f_plastids
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Postby chenwithasterisk » Tue Jan 02, 2007 5:13 am

hi:
but do RBC or WBC contain DNA? do they? they dont even have nuclues?

cheers
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Postby Poison » Tue Jan 02, 2007 5:54 pm

RBC loses when become mature. WBC have.
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Postby sachin » Tue Jan 02, 2007 6:01 pm

Poison wrote:RBC loses when become mature. WBC have.

:?: :?:
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Postby Poison » Tue Jan 02, 2007 6:04 pm

read the post before mine. Nucleus I mean.
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Postby sachin » Tue Jan 02, 2007 6:16 pm

Poison wrote:read the post before mine. Nucleus I mean.


Thank you for that. :) ..... I know that :)

Short massage..... May be difficult for others to understand.........
so I did that...... request to "Explain here after.." :P
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Postby adamMV07 » Fri Jan 05, 2007 3:07 am

nerve and muscle cells are the only cells that do not divide if that helps the topic at all...
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Postby chenwithasterisk » Fri Jan 05, 2007 5:30 am

adamMV07 wrote:nerve and muscle cells are the only cells that do not divide if that helps the topic at all...


dont they divide? how can they get replaced
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Postby sachin » Fri Jan 05, 2007 2:13 pm

chenwithasterisk wrote:
adamMV07 wrote:nerve and muscle cells are the only cells that do not divide if that helps the topic at all...


dont they divide? how can they get replaced


Refr my post; viewtopic.php?t=8986
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Re:

Postby IceIcebaby » Thu May 17, 2012 1:05 pm

Vibrio wrote:I thought all cells contained DNA. Otherwise how could they replicate? Or do white blood cells turn to red when they age?


Immature red blood cells each contain a nucleus, containing DNA. However, upon maturation they then lose their nuclei (due to certain proteins disposing of it), with this they lose their DNA. They do this to make more room for carrying oxygen and also making them flexible enough to pass through tight capillaries. Red cells don't replicate either, they are formed from stem cells in the bone marrow and differentiate into red blood cells, going through phases such as the nucleated immature cell. White blood cells contain DNA as they have a nucleus and also form from progenitor cells and differentiate into certain blood cells.

Hope this helps. x
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