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Recent content by Haya24

  1. H

    AS BIOLOGY

    What and were are the levels of protein oranization in DNA?
  2. H

    AS BIOLOGY

    Can anyone explaim how to draw chromosomes in a plan diagram? They appear thread like under the microscope do we have to draw its proper X kinda shape? Theres this P3 question in which a root tip is showing mitosis and we have to show different stages of it
  3. H

    AS BIOLOGY

    No
  4. H

    Physics: Post your doubts here!

    HELPPP. The pressure at sea level is 100000Pa. The density of sea water is 1030kg/m3. What is the approximate pressure 80m below the surface of sea? Answer is 900000Pa. How
  5. H

    AS BIOLOGY

    Is it necessary for a quaternary structure to have tertiaty too?
  6. H

    AS BIOLOGY

    Where is the secondary structure in collagen? Because secondary dtructure is present when there is alpha helix, collagen has no alpha helix but an overall helical structure. In mark schemes its written it has a secondary structure? Should it have quaternary due to presence of 3 polypeptides?
  7. H

    Physics: Post your doubts here!

    X shows 240 and Y shows 0. I want to ask that : 1. Why doesnt X show 40V as 240÷6=40 2. What would have been the reading of voltmeter if it was in parallel to the bulb before X 3. If there were two bulbs before X, would the answer had been the same?
  8. H

    Physics: Post your doubts here!

    What happens to p.d across a bulb with broken filanent in series and in parallel?
  9. H

    Physics: Post your doubts here!

    Thank you sooo much. I get itt Thanks a lottt.
  10. H

    Physics: Post your doubts here!

    Answer is B pleaase help
  11. H

    As physics p1 MCQS YEARLY ONLY.

    I don t understand that in some cases they use R=V/I saying resistance is directly propotional to voltage and in some cases I=V/R is used, saying Current is directly propotional to voltage. I don t understand which concept to use where. Help please
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