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  1. hermine

    Human Biology Assessment Content

    yes all HBonline, lectures and pracs are covered in assessments according to info on webct
  2. hermine

    Bsc Adv help.

    just wondering, if I do decide to drop from the advanced unit (chem in my case), does my time table change? Thanks in adv
  3. hermine

    2009 HSC Genetics Option

    I think the allele for O is i not I^O, it's the recessive alelle of the three
  4. hermine

    General Thoughts: Biology

    +1 something about the eventual eliminitation of the disease etc
  5. hermine

    General Thoughts: Biology

    Re: Hsc 2009 bio exam if the stomatas need to be open at night for gas exchange wouldnt they need to have a larger stomata size? B shows their stomata size is smaller at midnight indicating theyre closed so wouldnt that make it wrong?
  6. hermine

    General Thoughts: Biology

    Re: Hsc 2009 bio exam 15 cant have been B, if species 1 is a fungi, it cant be killed by antibiotics because antibiotics only affect bacteria, I think D was the only correct answer
  7. hermine

    2009 HSC Genetics Option

    i was tossing up between putting cystic fibrosis in there because its not caused by mutation, its caused by inheritance of homozygous recessive inheritance. so I ranted on about down syndrome and the potential of gene therapy cause the question asked "could lead to management...using gene...
  8. hermine

    LINKED GENES help!

    The inheritance of linked genes leads to the simple Mendelian ratio 3:1 because the alleles are on the same chromatid and the whole chromatid moves completely to the new cell. Only if crossing-over occurs will this ratio change, which is the case for dihybrid crosses giving the 9:3:3:1 ratio. I...
  9. hermine

    Process for cloning?

    Im assuming this is the secondary sources investigation to "describe a methodology in cloning", I chose to describe therapeutic cloning for organ transplants or for the treatment of diseases 1. DNA is extracted from affected patient 2. DNA is inserted into a donated enucleated egg (nucleus...
  10. hermine

    who else is screwed for ext 2 exam

    same situation as you haha, except for our number one who actually has a chance, so hopefully he brings us up
  11. hermine

    Sex Linkage and Meiosis

    as for 18 a) (ii), a female would need to have 2 copies of the recessive allele (one on each X chromosome) to show the sex-linked conditions of DMD. One of these alleles would thus need to be inherited from a father who also suffers from DMD. Males with DMD are weelchairbound and rarely live...
  12. hermine

    Sex Linkage and Meiosis

    no that can't be right, the two homologous chromosomes should be the same size, so the pairs are the two longer ones and the two shorter ones with the same letter representing corresponding alleles. The genotype should then be Aa, Bb, CC and Dd
  13. hermine

    Watson, Crick, Franklin and Wilkins.

    Briefly: Rosalind Franklin + Maurice Wilkins > King’s College London James Watson + Francis Crick > Cambridge University Early 1950s  Rosalind Franklin – woman working in male dominated field - Deduced DNA helical structure through X-Ray crystallography of DNA crystals - Wished to gather more...
  14. hermine

    !

    I hate these questions, I always thought relevance and validity meant the same thing, where research or experiment being carried out is relevant to the intended study, i.e. the method actually investigates the aim. As for reliability of sites and books, if they are written by a person of...
  15. hermine

    Selective Breeding

    my teacher thoroughly emphasised the use for "agricultural purposes" and so advised we chose examples like sheep and wheat. I chose wheat and have a pretty lengthy history of it to show the series of changes, but im not actually sure if its supposed to be this detailed haha: History of Wheat...
  16. hermine

    Question on A-B-O and Rh blood groups, trial exam question

    The only answer I can think of here is the use of cross-breeding experiments, which identifies the relative position of linked genes (i.e. if theyre on the same chromosome). They examine the frequency at which linked genes are separated, thus calculating the distance between them where 1%...
  17. hermine

    SHM questions

    partical moving SHM has acceleration= -9x, x=metres, t=seconds x=asin(3t + B) is a possible equation for motion initially accleration= 18 m/s2, after 5pi/18 seconds velocity=12 m/s. Show the amplitude =4m and particle moving along a horizontal line has an acceleration = -4x, x=metres...
  18. hermine

    Integration question

    My copy has a 2 what the effff bro, anyways thanks for that lol
  19. hermine

    Integration question

    I_%7Bn%7D=%5Cint_%7B0%7D%5E%7B%5CPi%20/4%7D%20tan%5E%7B2n%7Dx%5C:%20dx,%20n%5Cgeq%201,%20show%5C,%20I_%7Bn%7D+I_%7Bn-2%7D=%5Cfrac%7B1%7D%7B2n-1%7D I made tan^2n(x) = [tan^2(x)]^n then = [tan^2(x)]^n-1 . tan^2(x) but then got stuck lol, thaanks in advance
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