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  1. L

    CELL DIVISION!!

    @hassam where which book do u consult for As ?
  2. L

    Nuclear Division!!

    Walaikumusalam. the mitosis part of the cell cycle is further divided into 4 phases. 1)PROPHASE:- it has 2 parts, early prophase and the late prophase:- in early phase of the prophase the chromosomes in the nucleus becomes visible(by thickening and shortening). the 2 centrioles move apart in the...
  3. L

    CELL DIVISION!!

    ohkay....anyways thanks both of u!
  4. L

    CELL DIVISION!!

    SALAM EVERYONE. in my book it says that cytokinesis is invoved by the formation of cell wall b/w 2 nuclei OF THE PLANT CELL. cenrioles are involved in the nuclear division, but as we did in the first chapter, there are no centrioles in the plant cell so how come nuclear divison and formation of...
  5. L

    Biology help needed once again =)

    both of u thanks so much!! :)
  6. L

    Biology help needed....once again :)

    i think they meant the same. because chromatins are the loops of chromosome so as the chromosomes become invisible, the whole chromatin becomes invisible.
  7. L

    Biology help needed....once again :)

    well before the interphase, the chromosmes are not visible during interphase stage of the cell cycle, the chromosomes thickens and shortens and becomes visible. the chromosomes(1 chromatin) then forms 2 chromatin (chromosome-double structure) the nucleus then divides by mitoses(4 phases) the...
  8. L

    Biology help needed....once again :)

    yes it is..chromatin is the found inside the nucleus formed of loops of ''chromosomes''. while chromatid is the ''part'' of the chromosome(2 chromatids form 1 chromosome)
  9. L

    Biology help needed once again =)

    so come on and search it math angel!...its your turn now :mrgreen: @math angel: how can u judge people weather they are egyptian, saudi or paki wthout knowing any of their info :P
  10. L

    Biology help needed....once again :)

    Walaikumusalam. chromosomes are 2 chromatids joined together by a centromere. each chromatin is made up of one DNA(a double helix molecule) and consists of genes. while chromatins are the loops of chromosomes in the the nucleus(in nucleuplasm) well, about the answer of other part, we'll do it...
  11. L

    Biology help needed once again =)

    did u guys find it???? i searches it bt it only says that fibrils are held by the covalent bonds...stagger stuff wasnt there. :o jaldi bataao anyoneee!
  12. L

    Biology help needed once again =)

    i also want to know this question...anyone???????
  13. L

    BIOLOGY!

    dont worry...your teacher will cover the syllabus in time InshaAllah. :)
  14. L

    GOLGI VESICLES!

    thanks both of you!! :D
  15. L

    BIOLOGY!

    i did DNA wala chap before nuclear division :P
  16. L

    GOLGI VESICLES!

    salaam. what are golgi vesicles?? are these the part of the golgi apparatus that buds off(after modification of proteins) for excretion(out of the ccell)?
  17. L

    BIOLOGY!

    i have done cell structures, biological molecules, enzymes, membranes and transport, genetic coontrol of protein structure and function, and have just started cell division like math angel ;) what about u hassam?
  18. L

    WHERE ARE THE MARK SCHEMES??!!

    for paper 1.
  19. L

    WHERE ARE THE MARK SCHEMES??!!

    THERE ARE NO MARK SCHEMES FOR MAY/JUN 2001 AND OCT/NOV 2001 FOR BIOLOGY. I NEED THEM. I'LL BE THANKFUL IF ANYONE CAN SHOW ME THE MARK SCHEMES.
  20. L

    BIOLOGY!

    well thanks again ;) and i never took this in IGCSE! :D
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