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  1. N

    biology paper 1 doubts

  2. N

    biology paper 1 doubts

    This is the Question teh answer is C ! my question is why it's not D ??
  3. N

    biology paper 1 doubts

    Did you check the Question ?? It doesn't refere to this process ,it referes to asexual reproduction ! can you please check the question in the begining and then answer me !
  4. N

    biology paper 1 doubts

    what you are saying hapens in normal sexual reproduction ,this question is talking about an abnormal case not studied by you in either AS or A2, and if you check the question choice number2 sperm cells are produced by mitosis which is right ,please check the Question again check the choices and...
  5. N

    biology paper 1 doubts

    sperm cells are produced by mitosis ,mitosis doesn't involve independent assortment or crossing over ? mitosis produce genetically identical cells !!
  6. N

    biology paper 1 doubts

    But the Question says they develop from unfertilised eggs thus It's asexual reproduction ,no room for variation to occur
  7. N

    Biology P33 8 Nov

    Can you please help me with the unknowns thing ??
  8. N

    Biology P33 8 Nov

    what do you think ?
  9. N

    Biology P33 8 Nov

    In may 2011 varient 2 w hen you were required to estimate the glucose concentration of s1 and s2 which were the unknowns , the question stated that i had to do serial dillution to glucose concentration of 4 percent and record the time taken to observe the 1st color change of benedict solution
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    Biology P33 8 Nov

    I need help Please my exam is tommorow
  11. N

    Biology P33 8 Nov

    Guys I am confused about whether to add unknowns results in the table or not ???:(
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