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  1. A*****

    A level Biology: Post your doubts here!

    We had to mention about specificity of memory B and T cells and about the different shapes of antigens
  2. A*****

    Physics: Post your doubts here!

    There is constant acceleration so v changes at a constant rate of 9.81m/s²
  3. A*****

    A level Biology: Post your doubts here!

    Which question are u talking about?
  4. A*****

    A level Biology: Post your doubts here!

    Maybe around 40
  5. A*****

    A level Biology: Post your doubts here!

    I wrote that it marks the antigen so it is easier for the macrophage to identify and destroy it
  6. A*****

    A level Biology: Post your doubts here!

    I wrote that the small molecule had a STOP codon so the polypeptide is not synthesised as the STOP codon is encountered before the START codon...is it right?
  7. A*****

    Physics: Post your doubts here!

    I think opening it in a pc would work
  8. A*****

    A level Biology: Post your doubts here!

    Word file...open it in a pc
  9. A*****

    Physics: Post your doubts here!

    I'm sorry but I have no idea...better not to think about it now as tomorrow's a horrible one! In physics practicals not as much marks are deducted as we assume
  10. A*****

    Physics: Post your doubts here!

    https://www.xtremepapers.com/community/attachments/03_9700_22_ms____final_scoris-doc.63552/
  11. A*****

    Physics: Post your doubts here!

    https://www.xtremepapers.com/community/attachments/03_9700_22_3rp_afp-pdf.63551/ Here is the m18 paper
  12. A*****

    Physics: Post your doubts here!

    Yes correct
  13. A*****

    Physics: Post your doubts here!

    Yes
  14. A*****

    Physics: Post your doubts here!

    Is 3° fine instead of 2?
  15. A*****

    Physics: Post your doubts here!

    I used cm but got a gradient above 80...the x axis values were very low that's why maybe
  16. A*****

    Physics: Post your doubts here!

    I'm asking for the absolute uncertainty to get an idea of the %age uncertainty bqz that depends on our working only if the a.u is correct...I took it as 3°, divided by 12 x 100= 25%
  17. A*****

    Physics: Post your doubts here!

    It's totally ok to do graphs and tables, etc. with pencil bqz our practical papers are not scanned...they are sent directly
  18. A*****

    Physics: Post your doubts here!

    What was the absolute uncertainty in the protractor?
  19. A*****

    Physics: Post your doubts here!

    Do we take the uncertainty in ammeter as ±0.02??
  20. A*****

    Physics: Post your doubts here!

    And how to find the absolute uncertainty for an average value? Is it range/2?
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