AQA BIOL2 Biology Unit 2 Exam - 26th May 2011

i got 11 for A and T on the top row I think! :/
Can't remember any others

I don't think the row should of been the same, if you got 11 for A on the top row, I think you should of got 11 for T on the bottom row. (As they were 2 strands of the same DNA, so should match up with each other).

I got like 26 19 9 20 as they all add to 148 (the 74 base pairs).
_______ 19 26 20 9

Reply 1881

ellen-marie1992

Original post by mikey0892

What did you guys put for the last question about bacteria immunology?
i put vertical and horizontal gene transmittion!
any thoughts?

- yeah basically resistant strains survive, reproduce pass on plasmid containing resistant allele to next generation via vertical gene transmission. as the q was about trouble of antibiotics i also added horizontal gene transmission and how this leads to 'super bugs'

Reply 1882

M | k e

Original post by ellen-marie1992

according to the AQA website for the new specification the Biol2 is out of 85 and to get an A you need 52 which works out 61% which seems crazy low

Would appreciate it if someone could confirm/correct me on this

It changes each year of course, I'd *guess* (from no knowledge of past grade boundaries) around 70% would get an A? Biology is always notoriously low. Unit 4 especially is sometimes UNDER 50% for an A.

Reply 1883

maymaymo

Original post by M | k e

I don't think the row should of been the same, if you got 11 for A on the top row, I think you should of got 11 for T on the bottom row. (As they were 2 strands of the same DNA, so should match up with each other).

I got like 26 19 9 20 as they all add to 148 (the 74 base pairs).
_______ 19 26 20 9

that's exactly what I put, a similar question came up before...

Reply 1884

kingsmod1

guys so was the percetnage increase 55.6% then????

any1 confirm?

last Q on apoplast was alrite

Reply 1885

maymaymo

Original post by M | k e

It changes each year of course, I'd *guess* (from no knowledge of past grade boundaries) around 70% would get an A? Biology is always notoriously low. Unit 4 especially is sometimes UNDER 50% for an A.

it's only low because AQA are so bloody vague!

Reply 1886

Kidneyjean

7

Original post by ellen-marie1992

- so what is the grade boundary for 'A' and 'B' do you know? I got a C last year and revised a fair amount this year and doesnt seem to have paid off

Ah, that 65% is just a general guess, going by the boundaries from the last few papers...
From the last 4 sessions, they've been:

Jan '11: A(64%) B(56%) C(45%)
Jun '10: A(69%) B(61%) C(53%)
Jan '10: A(61%) B(54%) C(48%)
Jun '09: A(65%) B(58%) C(51%)

Reply 1887

M | k e

Original post by maymaymo

it's only low because AQA are so bloody vague!

Yeah it's hard to find the marks especially in unit 4, and they're always like 50% hsw so not many topics even come up >_<.

Reply 1888

mikey0892

We should be focusing on chemistry tomorrow!!!

Reply 1889

SoftMusk

10

i think nearly 2/3 of my bio class failed this exam because half of them looked through the paper, had a go at the 1-2 marker questions and just sat there for the rest 1 1/2 hours lol....i went through my exam paper like 5 times haha and just scribbled things down where i thought was appropriate.

Reply 1890

kingsmod1

guys so was the percetnage increase 55.6% then????

any1 confirm?

Reply 1891

M | k e

Original post by maymaymo

that's exactly what I put, a similar question came up before...

Sweet

At first I'd put like 26 26 9 9 or whatever and matched both rows as though they were both a full DNA strand, before I actually read the question then I kinda clicked they were the 2 seperate strands of one DNA helix >_<. And the fact they used base pairs = 74, instead of saying 148 bases. Seemed kinda a tricky question for 2 marks.

Reply 1892

chou246

8

Original post by kingsmod1

guys so was the percetnage increase 55.6% then????

any1 confirm?

Yes.

Reply 1893

M | k e

Original post by kingsmod1

guys so was the percetnage increase 55.6% then????

any1 confirm?

Why do you keep asking, like I said before about 90% of people got 55.55555% as their answer, so however you rounded it 55.56/55.6% is likely the right answer. Obviously no1 can confirm this, but yes I'd say its pretty sure to be right.

Reply 1894

ellen-marie1992

Original post by Kidneyjean

Ah, that 65% is just a general guess, going by the boundaries from the last few papers...
From the last 4 sessions, they've been:

Jan '11: A(64%) B(56%) C(45%)
Jun '10: A(69%) B(61%) C(53%)
Jan '10: A(61%) B(54%) C(48%)
Jun '09: A(65%) B(58%) C(51%)

- thanks alot, a may *just may* stand a chance still

Reply 1895

kingsmod1

Original post by M | k e

Why do you keep asking, like I said before about 90% of people got 55.55555% as their answer, so however you rounded it 55.56/55.6% is likely the right answer. Obviously no1 can confirm this, but yes I'd say its pretty sure to be right.

guys so was the percetnage increase 55.6% then????

any1 confirm?

LOL JK

Reply 1896

ZeeBurb

What does everyone think the mark for 100ums will be??? :smile:

thanks

Reply 1897

suzanni

Original post by M | k e

I don't think the row should of been the same, if you got 11 for A on the top row, I think you should of got 11 for T on the bottom row. (As they were 2 strands of the same DNA, so should match up with each other).

I got like 26 19 9 20 as they all add to 148 (the 74 base pairs).
_______ 19 26 20 9

Ahhh I'm sorrry!
I think I was in a bad place stressed in the exam!!!
I think I put 26 26 11 11
FML :frown:

I can't really remember haha but I certainly got 11 for either A or T on top row. At least each row added up to 74 in mine I suppose?!
The exam stress turns my brain into mush!! :frown:

Your answer sounds good :smile:

Thanks

Reply 1898

SoftMusk

10

how many marks will a C be???? plzz replyy!!!!! lol

Reply 1899

M | k e

Original post by suzanni

Ahhh I'm sorrry!
I think I was in a bad place stressed in the exam!!!
I think I put 26 26 11 11
FML :frown:

I can't really remember haha but I certainly got 11 for either A or T on top row. At least each row added up to 74 in mine I suppose?!
The exam stress turns my brain into mush!! :frown:

Your answer sounds good :smile:

Thanks

Hehe I could be wrong, but I guess you'd still get one mark as long as you matched up A's and T's and C's and G's somewhere, and perhaps made sure you got 148 total :tongue:

. So I figure you should at least get 1/2 ^_^.

Yeah exam stress sucks, I was sat next to the radiator and kept thinking how warm it was ~.~

AQA BIOL2 Biology Unit 2 Exam - 26th May 2011

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