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Recent content by fayzaan

  1. F

    A level Biology: Post your doubts here!

    its because g positive has the complementary carbohydrate side chains
  2. F

    A level Biology: Post your doubts here!

    look the question was that why does it attack g something positive and not g negtive
  3. F

    A level Biology: Post your doubts here!

    because it contains aminoacids which are formed by nitrogeneous bases
  4. F

    A level Biology: Post your doubts here!

    did u mention about the carbohydrate sidechains?! because u had to refer the diagram
  5. F

    A level Biology: Post your doubts here!

    there was also question about the penicilin
  6. F

    A level Biology: Post your doubts here!

    i think i will lose marks here are there and most probably get above 48 or 49. Praying that i am thinking right :))))))
  7. F

    A level Biology: Post your doubts here!

    i wrote the same as u but i do not think it is good enough for 4 marks
  8. F

    A level Biology: Post your doubts here!

    it a lt also mentioned about the total number of polypeptide chain it contains. Is it necessary to tell about quatenary structure
  9. F

    A level Biology: Post your doubts here!

    there was also a question about the features of channel protien what did u write in the question
  10. F

    A level Biology: Post your doubts here!

    i forgot to mention about memory cells but mentioned about the specificity of antibodies to antigens. How much marks will i lose?!
  11. F

    A level Biology: Post your doubts here!

    the one with immunity
  12. F

    A level Biology: Post your doubts here!

    and what was the answer for the question with different pathogenic strains
  13. F

    A level Biology: Post your doubts here!

    what do u guys think about the threshold?!
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