OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012
Biology exam discussion - share revision tips in preparation for GCSE, A Level and other biology exams and discuss how they went afterwards.
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Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012Possibly not. They're picky like that. And on the mark scheme of June 2003 paper which is exactly the same question, they state mitochondrion.(Original post by windo)
I put down mitochondria instead of mitochondrion. would i still get the mark? -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012yep(Original post by DoctorVertigo)
Ox anyone? -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012YUSSS!!!!(Original post by DoctorVertigo)
Ox anyone?
But idk why .... -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012I said humans exert artificial selection to get certain traits e.g long tails, but these alleles are linked to alleles that code for non maternal behaviour. Then I also but that it didn't matter that they didn't behave in a non maternal way because humans do it for them.(Original post by DoctorVertigo)
Why did fewer mother cats lick their young? I said human intervention meant humans look after young, so no selective pressure
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Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012For some reason this made me laugh haha, even though I feel exactly the same -_- I'm sure it was nuclues :/ And yeah plant hormones and the brain I understood wanted tht to come up.(Original post by The Illuminati)
In short, I thought the paper was horrible. Missed out about 60% when I first went through it. there were some questions that were simple but I wrote the opposite because I'm an idiot.
The Hb question, the deciduous forest question and the cats and inbreed (or whatever it was) seriously put me off. I just wrote random things.
Got the phenotype ratio wrong
Got the calculation for the length wrong 1.2 x 10 to the power of a really high number
wrong nucleus instead of mitochondria
Spent all night revising plant hormones and brain...nothing came up on it
Spent the majority of the exam praying that grade boundaries are low.
Are you trying to scare us? It was a horrible paper i and most other people thought! I pray it's LOWER(Original post by Bi0logical)
To be honest, the paper was decent, if you learnt the stuff you did good.
However the suggest questions were for A/A* candidates. Overall most people found it decent from what I've heard so grade boundaries will be standard, maybe higher than the Jan12?
does anyone actually remember what the wording for the scietific question was? Because I don't have a clue what everyone's on about, I think I completely overlooked it and missed it out. Don't even remember reading the question
What was the rest of the part related to the question about?
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Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012Haha lypotene, thats a mixture of lycopene in golden rice and phyotene!(Original post by shooby_doo)
Thats the word!!
Ffs i was sitting there for ages thinking what the hell is it called again ..
I settled for lypotene .... -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012The question was related to the scientific studies done on giant and red pandas in terms of protein molecules such as haemoglobin and cytochrome c.(Original post by The_original_one)
does anyone actually remember what the wording for the scietific question was? Because I don't have a clue what everyone's on about, I think I completely overlooked it and missed it out. Don't even remember reading the question
What was the rest of the part related to the question about?
Can't remember the wording though :P -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012I put 9(Original post by racheatworld)
Hi otrivine
X and Y was a sarcomere
Ratio was 1 : 1 : 1 : 1
And I put innate, other people have put learned
4, as I thought it was referring to the recessive epistasis on the first page (or was it?!)
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Ox(Original post by DoctorVertigo)
Ox anyone?
Yaayy looks like a definate 1 mark ive got
This was posted from The Student Room's iPhone/iPad App -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012i talked about everything on that(Original post by DoctorVertigo)
i dont remember talking about mutation? you mean why mother cats reduced frequency? -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012Urgh I think I missed that bit out, i remember reading about the giant panda n stuff but why do I not remember reading about hb and cytochrome c?! i think I didn';t even read the question properly fml(Original post by racheatworld)
The question was related to the scientific studies done on giant and red pandas in terms of protein molecules such as haemoglobin and cytochrome c.
Can't remember the wording though :P -
Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012Did the exact same thing(Original post by Javilionaire)
I put the ratio as 9
4 because that's the ratio of recessive epistasis.
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Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012
Also, what the hell was that deciduous forest question? I honestly wondered whether I'd just missed out a massive chunk of the course or something. I put deciduous trees drop their leaves but the peat plants don't shed them, that's the only logical thing I could think of.
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Re: OCR Biology F215 Control, Genomes and Environment Fri 15 June 2012LOL humans lick cats(Original post by LiveOne)
I said humans exert artificial selection to get certain traits e.g long tails, but these alleles are linked to alleles that code for non maternal behaviour. Then I also but that it didn't matter that they didn't behave in a non maternal way because humans do it for them.

