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GCSE OCR 21st Century Biology B7

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6 Markers

Sorry for the huge post ^^^^

hey does anyone have any more b7 past papers other than 2013? can't find any anywhere

i love eutrophication tbh if that comes up as a 6mq i'll be literally beaming :smile:

:smile:

))
ecosystems topic was boring too i agree

i have media tomorrow tho also so its like 2 exams for me tomorrow -_-

The_Philosopher

Original post by kxylah

Genetic testing is when you use the gene probe to identify genetic disorders, and genetic modification is when one gene is transferred to one organism to another, however DNA fingerprinting is when you test DNA in a persons cells and DNA profiling is when forensic scientists use the DNA to create a profile about the person themselves. In b7 though you only need to know about genetic testing and genetic modification, not the other stuff

Ahh thank you so much :smile:

:smile:

username1631419

I find it annoying that the only papers are the 2013 one and 2014. I've done each one like 4 times now and starting to remember the answers so it's not getting me anywhere. Now I'm just trying to remember the cgp guide word for word :mad:

:mad:

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(edited 8 years ago)

I've got the oxbow b7 paper too but it's a hard copy, and I don't have the Ms

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username1631419

Original post by Jitesh

I've got the oxbow b7 paper too but it's a hard copy, and I don't have the Ms

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I've got digital clean copies of last year's paper and ms if you want

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I'll upload a bunch of legacy papers soon with some relevant questions which are likely to get repeated this year

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Original post by Littleonezz

I've got digital clean copies of last year's paper and ms if you want

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Yeah please if you don't mind, my oxbow copy is clean just its not a pdf, but I'll take pictures of the 6 markers in a second

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The ecosystem part is pretty long lol

Original post by Littleonezz

I've got digital clean copies of last year's paper and ms if you want

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Can you please upload the copy of last year's paper that you have
Thanks

what is a plasmid?

username1631419

Original post by K K

what is a plasmid?

A small circular molecule of dna that is separate to an organisms main dna

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Original post by Littleonezz

A small circular molecule of dna that is separate to an organisms main dna

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does it just allow new genes to be introduced into a cell?

why is there no B7 papers for 2012?

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ETbuymilkandeggs

Original post by Vanilla Poison

6 Markers

Thanks for this. Do you have access to C7 and P7 potential 6-markers?

Original post by hanbuckley19

why is there no B7 papers for 2012?

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Because the specification changed for the 7 modules for 2013 onwards.

Original post by CookieHero

I honestly found the ecosystem part of B7 the worst and most boring topic ever. There is no real interest whatsoever.

Apart from easy marks from eutrophication, hate it all

Can someone explain how the 4 parts of ecological services work?

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