Year 12s: what will be the first way you research your future options? >>

F215 - Revision thread 13th June 2011

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Reply 2500

monkeyDace

i will survive if its mainly abouy module 1,3 and 4 and little about 2

Reply 2501

HollieMcLean

Original post by intellectual1

MODULE 1 WILL BE THE FOCUS OF THIS PAPER! :eek:

What's in module one? We didn't learn them in modules at my college :s-smilie:

Reply 2502

Hazel92

Original post by intellectual1

MODULE 1 WILL BE THE FOCUS OF THIS PAPER! :eek:

module one as in protein synthesis, meiosis, natural and artificial selection stuff? how do you know?

Reply 2503

greenford

just want to get it done with... throughout my school and college.. I haven't prepared for anything as much as I did for this exam..not even med interviews.... hope everything goes well

Reply 2504

heartskippedabeat

Original post by Kidms001

I actually don't know how I feel :dontknow:

.. I don't have {much} pressure on this exam, I just want to do really really well (considering how much work I've put in for it) :tongue:

I guess I just want to get it out of the way like you :rofl:

.. How are you feeling?

Haha! :awesome:

.. Singing is so therapeutic, regardless of ability :dance:

And I'll wish you good luck too, though I'm likely to be around for the next 2-3 hours, so I'm likely to say it again closer to the time :wink:

Yeah it is :biggrin:

Haha me too actually, how're you feeling about it? :smile:

Reply 2505

dcpower

Goodluck all! Hoping to be ready for this exam in next 2 hours :smile:

GOD helppp meee

Reply 2506

heartskippedabeat

Original post by DontPropositionMe

Its amazing what ~~heating cooling and heating~~ music can do :awesome:

Hahaha

It's so good!

Reply 2507

TobeTheHero

Just went through Apoptosis(hope it comes up :biggrin:

) and now going through Meiosis :yikes:

I'll keep you peeps updated whether I finish every module by 12PM On dot!

Reply 2508

DontPropositionMe

Original post by TobeTheHero

Just went through Apoptosis(hope it comes up :biggrin:

) and now going through Meiosis :yikes:

I'll keep you peeps updated whether I finish every module by 12PM On dot!

When did you start? I'm compulsively writing mini essays for the longer questions :colone:

GOOD LUCK

Reply 2509

duskflower

Am I the only one whose really scared about a big long confusing genetic cross question?

Reply 2510

Nirgilis

Original post by heartskippedabeat

Yeah it is :biggrin:

Haha me too actually, how're you feeling about it? :smile:

I'm a bit meh about this exam :dontknow:

.. I absolutely refuse to get worried and nervous (or refuse to accept it at least, because I probably am) about it since it doesn't do any good for performance. I think I just want to get it over with :wink:

How about you?

Original post by TobeTheHero

Just went through Apoptosis(hope it comes up :biggrin:

) and now going through Meiosis :yikes:

I'll keep you peeps updated whether I finish every module by 12PM On dot!

Are you writing or reading? I wrote a 10 page summary of Unit 5 yesterday and it took me nearly 4 hours :lolwut:

Reply 2511

Tobia_s

Original post by ekta9

Do you have the CGP book? That explains it really well!

Xenotransplantation is about the transfer of cells and organs from animals to different species (humans!). Basically theres 2 ways how animals can be genetically engineered:
1) Genes for HUMAN cell surface proteins are INSERTED into animals DNA. This is to reduce the risk of transplant rejection.
2) Genes for ANIMAL cell surface proteins can be removed/inactivated so reduce risk of rejection.

That's just a short summary of it :smile:

Don't know what the cgp book is :dontknow:

And thanks for that :smile:

Reply 2512

Hazel92

Lastly, how do you explain the genetic drifts?
I also need to know (methods of sampling, succession, what affects population size, competitions, sustainability and conservation.. ) <-- that, i haven't gone over.

Reply 2513

TobeTheHero

Original post by DontPropositionMe

When did you start? I'm compulsively writing mini essays for the longer questions :colone:

GOOD LUCK

8:30am I just hope Meiosis comes UP :biggrin:

You too! Hope we'll ace it :biggrin:

Reply 2514

I'mBadAtMaths

Come on biology! Come at me bro!

Reply 2515

TobeTheHero

Original post by Kidms001

I'm a bit meh about this exam :dontknow:

How about you?

Are you writing or reading? I wrote a 10 page summary of Unit 5 yesterday and it took me nearly 4 hours :lolwut:

No! I'm only writing the Key words and going through the pages at fast pace :biggrin:

Reply 2516

TobeTheHero

Original post by I'mBadAtMaths

Come on biology! Come at me bro!

LOL

Reply 2517

L11s07

Original post by Lou2049

does anyone know what the role of ampicillin is, in transformed bacterial cells?

Basicallyyyy, In replica plating, ampicillin resistance is present in the transformed Bacteria, which has taken up the transformed plasmid.
This means when the bacteria is placed on the ampicillin agar tray, it grows, whilst other colonies of bacteria die, allowing you to identify a range of possible correct colonies.
Then, using velvet, you transfer the colonies onto Tetracyclin, which has a similar function as the Ampicillin, except, the transformed bacteria will die, as the resistance for TET has been obscured by the new (Human) gene which was attached earlier, whilst all other colonies will live.
So basically which ever colony survives on AMP, but dies on TET, is the desired bacteria. As it shows it has the new gene present inside it.

hope that clear some of it, (if anything) up...

Reply 2518

intellectual1

Original post by Hazel92

module one as in protein synthesis, meiosis, natural and artificial selection stuff? how do you know?

because the jan11 papers are for people retaking...they set the jun papers knowing the entire country is takin it...

i went through the past papers...jun10 had lot of Module 1...
jan11 had alot of Module 2..

jun11 most likely will feature more Module 1 than Module 2

a third of the marks in both papers were based on the Module 3 and 4

Good luck everyone! Remember it is just 40 marks to pass, and 60 marks to gain your A grade! Grade boundaries tend to be low on this paper, as not everyone has the photographic memory to know the entire specification...

SYNOPTIC LINKS

MITOSIS F211
ENZYMES F212
DNA STRUCTURE OF NUCLEIC ACIDS F212
BIODIVERSITY CLASSIFICATION F212
RESPIRATION F214
NERVES AND HORMONES F214