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  1. I

    A level Biology: Post your doubts here!

    early prophase 1
  2. I

    A level Biology: Post your doubts here!

    can somebody tell me about mode of action of antibiotics such as penicillin on bacteria?
  3. I

    A level Biology: Post your doubts here!

    you can simply use ratio methods.......
  4. I

    A level Biology: Post your doubts here!

    Early prophase 1...........and this chiasmata formation continues in metaphase I.......In anaphase 1 no chaismata mata formation............................ one good tip for you when bivalents are formed....chaismata formation...
  5. I

    (ALL NOTES) =) O-LEVEL 0R IGCSE + A-Level

    my pdf file is not working i wanted to download the physics so they are not opening so is there any other way to open this?
  6. I

    Chemistry: Post your doubts here!

    As chemisry paper 1 june 2005 Q1 A pure hydrogen is used in bottled gas for cooking and heating. when 10cm3 of the hydrocarbon is burned in 70cm3 of oxygen (an excess) the final gaseous mixture contains 30cm3 of carbon dioxide and 20cm3 of untreated oxygen. All gaseous volumes were measured...
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