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    (Original post by john51)
    The answer was B, 2.5
    Thank you! I'm sure I guessed that one luckily! Hahaa!


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    Anyone do the translation of mRNA essay question ? What did you put ?
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    if anyone knows the correct answers could they post the multiple choice answers on here?
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    I am a biology teacher - these are the answers to section A Multiple Choice - I am tired but I'm sure these are correct:

    1. A
    2. B
    3. D
    4. A
    5. D
    6. B
    7. D
    8. A
    9. B
    10. D
    11. C
    12. C
    13. C
    14. D
    15. A
    16. B
    17. C
    18. A
    19. C
    20. D
    21. D
    22. B
    23. A
    24. C
    25. B
    26. A
    27. B
    28. C
    29. B
    30. C

    My scanner is broken so please don't ask me to scan in the paper
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    (Original post by Simiantics)
    I am a biology teacher - these are the answers to section A Multiple Choice - I am tired but I'm sure these are correct:

    1. A 11. C 21. D
    2. B 12. C 22. B
    3. D 13. C 23. A
    4. A 14. D 24. C
    5. D 15. A 25. A
    6. B 16. B 26. A
    7. D 17. C 27. B
    8. A 18. A 28. C
    9. B 19. C 29. B
    10.D 20. D 30. C

    My scanner is broken so please don't ask me to scan in the paper

    Yes!!! I definitely got 3 C's in a row
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    (Original post by Hannah1709)
    What did everyone write for the question on the curled leaf where it asked for the advantage of the leaf bring curled to reduce water loss?
    when it curls there is a smaller surface area so less water is lost via evaporation i think
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    (Original post by Simiantics)
    I am a biology teacher - these are the answers to section A Multiple Choice - I am tired but I'm sure these are correct:

    1. A 11. C 21. D
    2. B 12. C 22. B
    3. D 13. C 23. A
    4. A 14. D 24. C
    5. D 15. A 25. A
    6. B 16. B 26. A
    7. D 17. C 27. B
    8. A 18. A 28. C
    9. B 19. C 29. B
    10.D 20. D 30. C

    My scanner is broken so please don't ask me to scan in the paper
    thank you
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    (Original post by Hannah1709)
    What did everyone write for the question on the curled leaf where it asked for the advantage of the leaf bring curled to reduce water loss?
    I put that the leaf would be sheltered from the wind. since high winds increase transpiration rate and the leaf was sheltered, transpiration rate would be low as the wind could not easily access the stomata. since transpiration rate would be low, water loss would be low.
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    (Original post by sheydaA)
    when it curls there is a smaller surface area so less water is lost via evaporation i think
    But when it curls it still has the same surface area. the leaf is just a different shspe. its because its shelteted from the wind
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    The question in section B that some people probably found wierd was the meiosis one. It was actually quite simple but just looked strange.

    The four chromosomes were lined up as homologous pairs (with chromatids showing). The plant that they belong to therefore has the genotype RrBb.

    (i) The possible gametes from RrBb are RB, Rb, rB, rb.

    (ii) The pairs were lined up before 1st meiotic division. You just had to fill in the blanks to make the top chromosome RR and the bottom one bb. The right side one was rr and BB. Much more simple than some might imagine.

    (iii) chromatids separate

    (b) (i) showed a homologous pair with linked genes:

    E E e e

    H H h h

    Normal gametes would be EH and eh. Recombinant gametes due to crossing over would be Eh and eH.

    (ii) Process = crossing over
    Importance = produces variation in gametes leading to possible improvements in phenotype.

    I hope thats clear as I am unable to scan in the paper.
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    (Original post by john51)
    But when it curls it still has the same surface area. the leaf is just a different shspe. its because its shelteted from the wind
    but now some of it is under the other part of the leaf so less leaf is exposed, wahh idk i'm most likely wrong
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    (Original post by john51)
    I put that the leaf would be sheltered from the wind. since high winds increase transpiration rate and the leaf was sheltered, transpiration rate would be low as the wind could not easily access the stomata. since transpiration rate would be low, water loss would be low.
    This is correct = you could also say it increases the humidity inside the curled leaf which reduces transpiration rate.
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    I did that one on photosynthesis and the one on succession. Although my mind blanked halfway through the succession one, but I don't think it went too bad.
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    (Original post by Simiantics)
    The question in section B that some people probably found wierd was the meiosis one. It was actually quite simple but just looked strange.

    The four chromosomes were lined up as homologous pairs (with chromatids showing). The plant that they belong to therefore has the genotype RrBb.

    (i) The possible gametes from RrBb are RB, Rb, rB, rb.

    (ii) The pairs were lined up before 1st meiotic division. You just had to fill in the blanks to make the top chromosome RR and the bottom one bb. The right side one was rr and BB. Much more simple than some might imagine.

    (iii) chromatids separate

    (b) (i) showed a homologous pair with linked genes:

    E E e e

    H H h h

    Normal gametes would be EH and eh. Recombinant gametes due to crossing over would be Eh and eH.

    (ii) Process = crossing over
    Importance = produces variation in gametes leading to possible improvements in phenotype.

    I hope thats clear as I am unable to scan in the paper.
    I got the crossing over, but i just said that it produces variation. will i get the msrk for just 'produces variation'?
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    (Original post by Simiantics)
    The question in section B that some people probably found wierd was the meiosis one. It was actually quite simple but just looked strange.

    The four chromosomes were lined up as homologous pairs (with chromatids showing). The plant that they belong to therefore has the genotype RrBb.

    (i) The possible gametes from RrBb are RB, Rb, rB, rb.

    (ii) The pairs were lined up before 1st meiotic division. You just had to fill in the blanks to make the top chromosome RR and the bottom one bb. The right side one was rr and BB. Much more simple than some might imagine.

    (iii) chromatids separate

    (b) (i) showed a homologous pair with linked genes:

    E E e e

    H H h h

    Normal gametes would be EH and eh. Recombinant gametes due to crossing over would be Eh and eH.

    (ii) Process = crossing over
    Importance = produces variation in gametes leading to possible improvements in phenotype.

    I hope thats clear as I am unable to scan in the paper.
    For ii I thought the question was really unclear, it said made the gametes Rb, so I just filled in the diagrams both RR bb because how does rrBB produce it idk

    iii) I wrote like the whole of second stage of meiosis does it matter, I did end by saying chromatids separate.

    bii) Can it be independent assortment as that makes recombinants doesn't it?

    And for the multiple choice it looks like I got most of the same answers as you
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    Does anyone have a copy of the multiple choice part of the paper?
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    For the genotypes of the sex linked genes, were you meant to write X(superscript D)Y and X(superscript D)X(superscript d) etc etc?? That's what I did anyway...
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    And ahhh please somebody upload a copy of the paper?
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    (Original post by Simiantics)
    I am a biology teacher - these are the answers to section A Multiple Choice - I am tired but I'm sure these are correct:

    1. A
    2. B
    3. D
    4. A
    5. D
    6. B
    7. D
    8. A
    9. B
    10. D
    11. C
    12. C
    13. C
    14. D
    15. A
    16. B
    17. C
    18. A
    19. C
    20. D
    21. D
    22. B
    23. A
    24. C
    25. A
    26. A
    27. B
    28. C
    29. B
    30. C

    My scanner is broken so please don't ask me to scan in the paper
    25 was B if it was the one about enzyme activity cos it decreased by half
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    what is dis paper dat is being discussed?please let me noe
 
 
 
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