Biology Exam Discussion (and suggested answers!)

[bimberfairy]

But the cell was 3cm across and 1cm = 5um according to their scale. Or am I just an idiot who can't use a ruler ?
And also don't t cells replicate - burnets clonal selection theory and all?
Thanks for posting all of this though!

Yeah I thought T cells get cloned too? Hmm.

[caitlinlddouglas]

The question just said ‘named disease’ so it doesn’t have to be infectious. I did melanoma and the use of public health programs like ‘Slip slop slap’ over expensive treatments

That's so good 😊 !!!

[Daniyahasan]

it was a pretty good exam only annoying question was the beadle and tatum 8 marker

[ellybubble]

Yeah I thought T cells get cloned too? Hmm.

yes i think they do! I just checked biology in focus and it said they do

[Zamura1]

Rip just realised i drew a longitudinal section of the plants Why the hell did they want as to draw a transverse if its basically the same thing

[elysepopplewell]

Naomi has finished the short answer questions! Head back to page one of this thread to check them out!

[naomisirmai]

A

For the Beadle and Tatum, did you guys talk about how knowledge of how certain genes produce certain polypeptides ( and hence proteins) has allowed transgenic species because we can take out specific genes to allow specific proteins to form in the organism?

Absolutely!! Check my skeleton of a sample answer above

[blasonduo]

Rip just realised i drew a longitudinal section of the plants Why the hell did they want as to draw a transverse if its basically the same thing

So far I've seen a lot of people tricked by it, and probably WAS the reason they wanted transerve, to trick people

Also, my diagram was pretty wonky, that shouldn't have an effect on the mark right?

[Paul.I]

I honestly thought today was the fairest and most straightforward HSC exam l have ever come across. Great timing and the communication topic l thought was excellent. I honestly thought T-Cells cloned too but l am more than happy to say l am wrong. Now that genotype question came up in 2002 (see below) and going from that I assume the answer will be Aa Bb Gg (which l am pissed off at cause l should have known but oh well). The 8 marker l thought was reasonable. But l hell of a lot to talk about. All in all a great exam

[adelaidecruz]

Did anyone else write about malaria for Q29 and talked about the possible evolution of plasmodium that is resistant to anti-malarial drugs?

[Livchum]

What do you guys think the cut off for a band 6 will be?

[tammy.tran31]

Did anyone else write about malaria for Q29 and talked about the possible evolution of plasmodium that is resistant to anti-malarial drugs?

Yup! I wrote about Malaria as well like how the Plasmodium became resistant to drugs like equinine..

[Rainbowhippocampus]

With the franklin multiple choice, could the answer of been sugar phosphate backbone as she did discover this as well?  I thought it was mainly Watson and crick for double helix structure, like I know she contributed but it wasn't the main feature she came up with?

[naomisirmai]

Have amended by answer to question 11 - thanks for the feedback guys!

Both B and T cells can form clones by clonal proliferation. HOWEVER; whilst B-cells can recognise specific antigens, T-cells only recognise them in the context of MHC - a special protein (a little beyond the scope of the syllabus)... So based on the wording of the question, I don't think C) is technically correct either. I think it is just the *most* correct.

[liya1234]

Thanks so much!! Just for question 20 I couldn't really pick between A and D and ended up going with A - can someone please explain why it would be D because I don't really understand?