AQA Biology B2 Exam

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Reply 60

logic99

Original post by parsonec01

did everyone get 23 and 46 alleles or 1 and 2

For the cystic fibrosis one?

Reply 61

nabster458

how is it 40, it did say that the scale was 0.1 and the length was 4 didnt it?

Reply 62

Desouza123

What did you put for the fossil in the soft material?
I said casts and impressions then how the organism is buried in soft material and how the soft material hardens as the animals decay leaving a cast of itself. Not sure

Reply 63

JassyC

For the polydactyly and cystic fibrosis one? I got 1 and 2... I don't know though

Yeeeesssss!!! I did that aswell! I totally screwed the magnification question and don't even remember the ratio one.... well I think I didn't simply it and just left it as three digit numbers?

Reply 64

J.Holmes99

Original post by Major Wilson

40 but it's 400

Did it say 0.1 or 0.01 I'm sure it said 0.1 and did you need to convert cm to mm or something?

Reply 65

amylouco

Original post by abbiemallett

What was the answer to the first question??

glycerol!

Reply 66

Major Wilson

Original post by J.Holmes99

Did it say 0.1 or 0.01 I'm sure it said 0.1 and did you need to convert cm to mm or something?

It said 0.1mm

Reply 67

JassyC

I wrote that fist then wrote it was preserved in amber bcs I could see the bones? IDK though...

Reply 68

J.Holmes99

Original post by nabster458

how is it 40, it did say that the scale was 0.1 and the length was 4 didnt it?

I put 40 because 40 times 0.1 equals 4 (the length)

Reply 69

Meganpizza

Original post by Desouza123

Is a lack of evidence and soft bodied organisms 2 marks do u think?

Yep that was 2 marks on a past paper but I guess it depends on the mark scheme for this year.

Reply 70

Smingle

If you looked closely on the graph, there was a vertical line at which exercise finished. At the peak of the line for athlete 1, the reading was way above 80, but the reading was taken from the end of exercise line which was 77. It just so happened that the peak of athlete 2 was on this line for both graphs so it was easier to read off the results.

Reply 71

Desouza123

I'm not doing a level biology cos of that bad experience. On the 6 marker I just panicked and I didnt even say you have to use a ruler to measure the leaves. I feel like such a fool

Reply 72

amylouco

Original post by Desouza123

i put this too! not sure if its right, it was hard to tell what the picture was!

Reply 73

Turtlebunny

Original post by parsonec01

did everyone get 23 and 46 alleles or 1 and 2

I got 23, and 46 because its for all the alleles in the entire cell.

Reply 74

moomus

I got the same as well

Reply 75

staro62

Original post by Senpai

Alot of people I asked said homo , homo then hetro

i think i did the other way round

Reply 76

J.Holmes99

[QUOTE="Turtlebunny;55703285"]I got 23, and 46 because its for all the alleles in the entire cell.[/QUOTE

But you only need (1) copy of an dominant allele for it to expressed (poly dactyly) and you need (2) copy's for a recessive (cystic fibrosis)

(edited 8 years ago)

Reply 77

moomus

Original post by logic99

For the cystic fibrosis one?

I got 1 & 2

Reply 78

staro62

Original post by JassyC

Yeeeesssss!!! I did that aswell! I totally screwed the magnification question and don't even remember the ratio one.... well I think I didn't simply it and just left it as three digit numbers?

i did w then 2 on the allele/chromosome question!
i simplified it to 3:1 which is not entirely accurate

Reply 79

Naveedkhan.01

I think I messed up on the stomach tissue but I did b2 biology foundation, did anyone do b1 biology foundation could you please inbox me

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