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  1. bedpotato

    Biology 2013ers MARATHONN

    ............................. Enzyme 1 ................ Enzyme 2 .............. Enzyme 3 Starting substance ----------> Ornithine ----------> Citrulline ----------> Arginine If the gene responsible for producing Enzyme 1 was mutated, which amino acid(s) would have to be added to the fungus'...
  2. bedpotato

    Biology 2013ers MARATHONN

    Yeah, got it mixed up with the cattle colour - red, white, roan.
  3. bedpotato

    Biology 2013ers MARATHONN

    co-dominance idek anymore
  4. bedpotato

    HSC Biology exam paper

    last year had quite a bit of skills/pracs i think
  5. bedpotato

    Biology 2013ers MARATHONN

    No lol. That was meant for sex-linkage.
  6. bedpotato

    Biology 2013ers MARATHONN

    Yep, but also mention the size of the chromosomes. I had the same answer, but only got 2/3 because didn't mention size >.<
  7. bedpotato

    Biology 2013ers MARATHONN

    If you mean punnet squares, yes you can. Bio teacher takes marks off if we don't draw punnet squares where appropriate :/
  8. bedpotato

    Biology 2013ers MARATHONN

    It is rare to find a female with a sex-linked disease such as haemophilia or red-green colour blindless. Justify this statement. [3]
  9. bedpotato

    HSC Biology exam paper

    There was a q on epidemilogy last year, 5 marker. Hoping it doesn't come up again.
  10. bedpotato

    HSC Biology exam paper

    hoping for a long response on australian insects and terrestrial mammals :D :D :D :D but doubt that'll ever happen.
  11. bedpotato

    Biology 2013ers MARATHONN

    lol i just wanted to know if this method was appropriate for this question. risks: - bunsen burner flame - spread of pathogens: don't open the agar plates after incubation - water samples are contaminated; don't consume what would you write about sample size?
  12. bedpotato

    HSC Biology exam paper

    same for me lol but only one was weighted. the other one was just for randomness.
  13. bedpotato

    Biology 2013ers MARATHONN

    Just a quick outline; - sterilise workbench area using methylated spirits. - obtain 5 nutrient agar plates - seal one plate with sticky tape and label as control - obtain water samples from two different sources: pond water, river water - sterilise innoculating loop - dip the innoculating...
  14. bedpotato

    Biologist in the HSC course??

    why did i laugh at this :/ But this is what I have as well.
  15. bedpotato

    Biology 2013ers MARATHONN

    Yeah, something like that. There was a question in 2012, and its answer will probably explain it better than I can.
  16. bedpotato

    Biology 2013ers MARATHONN

    Forgot to reply to this, haha sorry. b is incorrect A- endotherm B - ectotherm
  17. bedpotato

    Biology 2013ers MARATHONN

    Don't think you understand the difference between gene cloning and whole organism cloning, which is quite self explanatory. Whole organism cloning: a whole organism is cloned. produces identical offspring which are copies of the parent organism. Gene cloning: produces multiple copies of only...
  18. bedpotato

    HSC Biology Progression

    You've still got today to cram lol.
  19. bedpotato

    Biology 2013ers MARATHONN

    - briefly (1 - 2sentences) describe what gene cloning is (recombinant DNA technologies, PCR) - uses of gene cloning - insulin is right, but you need more examples - advantages - relate this to its uses - disadvantages - again, relate this to its uses - evaluation (conclusion)
  20. bedpotato

    HSC Biology Progression

    I don't quite get you lol.
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