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  1. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Didn't you say in the previous post that 2 chromatids make up one DNA molecule? Doesn't that mean that in a human cell there are 23 DNA molecules before entering interphase?
  2. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Also, can someone tell me what's the difference between a chromatid and a DNA molecule? These questions seem to be the same but the answers are different. :/ So, in interphase the chromosomes double, I get that. So in humans the...
  3. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne It's too hectic in that thread!
  4. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Brilliant! But there seems to be a problem.. :/ The mark scheme says that number 13 is A (n^r)
  5. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Thank you yet again! I don't know what I'd do without all of your kind help. Also thank you beso! :D
  6. Ahmad95

    Biology MCQ thread..!!

    THANK YOU! I finally got it! This is my "teacher's" second year teaching Biology AS and whenever I asked him about those all he says is: "I'm not sure.. but it's only one mark so it's no problem." I swear to God whenever he says that I want to slap him across the face. Excuse my aggression. :D...
  7. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne It said B, the answer is 1000. Sorry for the mistake. ^_^
  8. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Nope.. why?
  9. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Saudi Arabia, actually.. But I'm Egyptian. :)
  10. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Actually the mark scheme says its A. I did the same thing you did but as I said, it's incorrect.
  11. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne Why? PLEASE explain.
  12. Ahmad95

    Biology MCQ thread..!!

    Can anyone help me with these doubts? viewtopic.php?f=26&t=9440 Thank you. :)
  13. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Re: BIOLOGY 9700 Problems with Amino acids, help URGENTLY ne If you can, please show me how you got the answer (calculations) and if you could describe what you did. Thanks a lot. :)
  14. Ahmad95

    BIOLOGY 9700 Problems with Amino acids, help URGENTLY needed

    Hey there everyone, I need urgent help due to the fact that the exam is tomorrow. Sorry for being of annoyance but, I'm facing great problems with calculating number of minimum nucleotides and such.. I'll post them as attachments. Thanks in advance.
  15. Ahmad95

    BIO Doubts..here..everyone!!

    Scab formation Actually, when you get cut, the platelets release thrombokinase which acts as an enzyme in the conversion of prothrombin to thrombin and the thrombin is used to convert soluble fibrenogen to insoluble fibrin, the insoluble fibrin forms a mat around the wound which traps red blood...
  16. Ahmad95

    BIO Doubts..here..everyone!!

    The vitamins absorbed are A, D, E and K. :)
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