AQA GCSE Biology 2 Higher 21st May Exam

Original post by ukulele96

That what I got, but the problem was that I forgot to mention that the dominant allele caused it :angry:

Oh well... did anyone get for the very last question that you had no way of knowing that they went with probability which meant that it could have been either HH or Hh?

You should still get at least 2 marks for it then, it's sort of implied that it must have been dominant if you got the right genotypes :smile:

For the last question I put pretty much the same as you. I just said you'd need to know about the alleles of the other cat (I think it was cat C?) in order to know.

Reply 22

Original post by osama2

thats correct! well done! u had to say 75% have the disease. 25% are normal.

Ohh i didn't mention that :s-smilie:

i said that looking from the diagram, 4 out of the 6 cats have the disorder.. this shows that its more than 50% which is why its dominant... lol messed it up pretty bad

Reply 23

ukulele96

Ok cool, what did people get for the Carbon Cycle question then? I was a bit confused, but I just explained how it can be decomposed and then becomes fertiliser, and stuff... but i swear it has nitrates in it which is why it's good, so the carbon part confused me...

Reply 24

osama2

what did everyone put for the times? where they exactly met?
and did anyone get 21 as an answer for any of the questions?

Reply 25

Original post by Taliahart

What did you guys write for the carbon cycle question? :/

Microorgansims break down the faeces and take in the carbon compounds in it. This carbon is released into the atmosphere when the micro organisms respire. The grass plants take this carbon in during photosynthesis.

Reply 26

Original post by frank35

Ohh i didn't mention that :s-smilie:

i said that looking from the diagram, 4 out of the 6 cats have the disorder.. this shows that its more than 50% which is why its dominant... lol messed it up pretty bad

Don't worry, you won't lose marks for putting something like that. I expect you'll get at least one for saying 2 x Hh, and if you drew a diagram that'll be at least another one! :smile:

Reply 27

Original post by frank35

Microorgansims break down the faeces and take in the carbon compounds in it. This carbon is released into the atmosphere when the micro organisms respire. The grass plants take this carbon in during photosynthesis.

That makes a lot of sense...shame I didn't think of it in the exam :frown:

I wrote an apology note to the examiner, for the amount of pure crap they'd have to read in my paper!

Reply 28

Original post by Taliahart

Don't worry, you won't lose marks for putting something like that. I expect you'll get at least one for saying 2 x Hh, and if you drew a diagram that'll be at least another one! :smile:

ahh right thank you :smile:

hopefully the grade boundaries are low lol

Reply 29

OP

The last Question was really hard, i had a random guess at it. There was no mention of it being Dominant or Recessive.

What do you guys get for the Graph Question about Glucose Concentration?

Reply 30

ukulele96

Original post by frank35

Microorgansims break down the faeces and take in the carbon compounds in it. This carbon is released into the atmosphere when the micro organisms respire. The grass plants take this carbon in during photosynthesis.

Oh!!!!! Makes so much more sense now!

And I got 7:30 am and pm... not sure if that's right... i also got 11 and 22... (I think)

Reply 31

OP

Original post by frank35

Ohh i didn't mention that :s-smilie:

i said that looking from the diagram, 4 out of the 6 cats have the disorder.. this shows that its more than 50% which is why its dominant... lol messed it up pretty bad

Wasnt it 4/8 cats have disorder?

Reply 32

Original post by Taliahart

That makes a lot of sense...shame I didn't think of it in the exam :frown:

I wrote an apology note to the examiner, for the amount of pure crap they'd have to read in my paper!

don't worry :smile:

because i think if you talked about nutrients you would still get marks :smile:

Reply 33

AnyRandomName

Original post by osama2

what did everyone put for the times? where they exactly met?
and did anyone get 21 as an answer for any of the questions?

I put 7:30am and 7:30pm. I wasn't sure on that question though.
Nope I didn't get 21 I don't think.

Reply 34

Ketchup!

Original post by HopelessTurtle

Wasnt it 4/8 cats have disorder?

No, it was 4 out of 6
There were 6 children
The extra 2 were two other cats that two of the children had breeded with

Reply 35

Original post by HopelessTurtle

The last Question was really hard, i had a random guess at it. There was no mention of it being Dominant or Recessive.

What do you guys get for the Graph Question about Glucose Concentration?

Exactly! It took me ages to work out it must be dominant!

I said he could be diabetic because;
1. It took him a long time for his blood sugar levels to return to normal after the dirnk (3 hours).
2. His blood sugar levels rose an unusual amount in comparison to person B

Not too sure though!

Reply 36

OP

Original post by osama2

did u put protease and amaylase as one of ur answers?

Yeah i got Protease and Amylase as well.

Reply 37

Original post by osama2

what did everyone put for the times? where they exactly met?
and did anyone get 21 as an answer for any of the questions?

7.30 am and 7.30 pm

But I got 11 and 33 ( I think you had to add 22 and 11)

Reply 38