DNA analysis

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    • #6427
      Trishntonia
      Participant

      What part of blood is used for DNA analysis and why?

      Thanks a bunch!!

      Angel 🙂

    • #61248
      rob3
      Participant

      The white blood cells, red blood cells contain no DNA so cannot be used for sequencing; white blood cells do and can.

    • #63156
      Vibrio
      Participant

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

    • #63224
      sachin
      Participant
      quote Vibrio:

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

      RBC do not contain DNA, and Do not replicate.
      WBC are differant than those of RBC… 🙄

    • #63234
      Oscerot
      Participant
      quote sachin_at_biog:

      quote Vibrio:

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

      RBC do not contain DNA, and Do not replicate.
      WBC are differant than those of RBC… 🙄

      He was told that already. He was asking how red blood cells are created if they don’t contain DNA.

    • #63261
      LilKim
      Participant
      quote Oscerot:

      quote sachin_at_biog:

      quote Vibrio:

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

      RBC do not contain DNA, and Do not replicate.
      WBC are differant than those of RBC… 🙄

      He was told that already. He was asking how red blood cells are created if they don’t contain DNA.

      ..wow! easy man… be nice!

    • #63262
      LilKim
      Participant

      To further clarify. MATURE human RBC’s don’t have a nucleus (thus, they do not contain DNA.

      However, immature RBC (in the bone marrow) are nucleated.. but somehow ‘lose’ their nucleus upon maturation.

      But, I believe bird RBC are nucleated (they contain DNA).

      Hope this helps!

      Kool beans!
      – KIM

    • #63264
      Vibrio
      Participant
      quote :

      WBC are differant than those of RBC…

      Yeah, I kinda knew that since like 2nd grade. so you don’t have to roll your eyes at me!!

      Thanks LilKim. I had forgotten that they come from bone marrow.

      I did not think RBC and WBC were the same thing, I was wondering if maybe WBC turned into RBC after a period of time, but now I see they don’t.

    • #63296
      sachin
      Participant

      May be you understand better here…

      http://www.fortunecity.com/greenfield/r … oiesis.htm


      Attachments:

    • #63331
      ninad
      Participant

      I think the chorosomes and some kinda cells are used

    • #64425
      chenwithasterisk
      Participant

      well, i guess something’s wrong.
      i thought only mitochondria and plastids contain DNA,in eukaryotes.all the DNA is contained in nuclues?

      cheers

    • #64433
      LilKim
      Participant

      both mitochondria and nuclei contain DNA…. mitochondrial DNA encodes most of the genes necessary for mitochondrial function (mitochondria also have ribosomes) Learn more here: http://en.wikipedia.org/wiki/Mitochondria

      The cell nucleus contains DNA encoding all of the other genes necessary to make the cell a functional,living entity… additionally, the nucleus encodes a few gene necessary for mitochondrial function.

    • #64434
      LilKim
      Participant

      oh yeah… and plastids also contain DNA … learn more here: http://en.wikipedia.org/wiki/Plastid#In … f_plastids

    • #64443
      chenwithasterisk
      Participant

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

      cheers

    • #64476
      Poison
      Participant

      RBC loses when become mature. WBC have.

    • #64479
      sachin
      Participant
      quote Poison:

      RBC loses when become mature. WBC have.

      ❓ ❓

    • #64481
      Poison
      Participant

      read the post before mine. Nucleus I mean.

    • #64485
      sachin
      Participant
      quote Poison:

      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.." 😛

    • #64633
      adamMV07
      Participant

      nerve and muscle cells are the only cells that do not divide if that helps the topic at all…

    • #64652
      chenwithasterisk
      Participant
      quote adamMV07:

      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

    • #64668
      sachin
      Participant
      quote chenwithasterisk:

      quote adamMV07:

      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

    • #111138
      IceIcebaby
      Participant
      quote Vibrio:

      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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