Chi square basiaclly is based on Null hypothesis , in which the result you get from chi square (a value) tells if the hypothesis can be true or not for a particular experiment,mathematically its sigma (O-E)^2/E(Original post by Tinkerbelle ♥)
No same, I couldn't even tell you what it's for. All I can tell you is it involves maths. And complicated looking symbols.![]()
where O: is the observed allele frequency,E: Expected frequency.
EDIT: made that in rush, would have posted more info but kinda busy atm.I will do once i get the time.
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OCR 2010 A2 Biology Unit 2 - Control, Genome and Environment watch
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ibysaiyan
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- 10-02-2010 20:37
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Tinkerbelle ♥
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- 10-02-2010 21:56
(Original post by ibysaiyan)
Chi square basiaclly is based on Null hypothesis , in which the result you get from chi square (a value) tells if the hypothesis can be true or not for a particular experiment,mathematically its sigma (O-E)^2/E
where O: is the observed allele frequency,E: Expected frequency.
EDIT: made that in rush, would have posted more info but kinda busy atm.I will do once i get the time.Doesn't sound as scary as I was imagining, though!
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xXxBaby-BooxXx
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- 10-02-2010 21:58
Hey, I've got a couple of questions, rep for the best answer
1) Explain how cloning an animal can help save an endangered species of mammal?
2) State three ways of setting up a gene bank for the species being cloned?
Answers ASAP (i.e. tonight) please -
ILikeTheGame
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- 11-02-2010 00:32
hey guys havnt posted in a while but i think i'm in love with lac operon :Love:
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ibysaiyan
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- 11-02-2010 19:13
(Original post by ILikeTheGame)
hey guys havnt posted in a while but i think i'm in love with lac operon :Love: -
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- 11-02-2010 19:57
(Original post by ibysaiyan)
Hey, why whats with it? -
ibysaiyan
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- 11-02-2010 20:26
(Original post by win2kpro)
Because of switching off the offswitch XD - I assume lol -
ibysaiyan
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- 12-02-2010 13:56
So.. how is it going guys? =}
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xXxBaby-BooxXx
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- 12-02-2010 14:05
(Original post by ibysaiyan)
wait what switch lol? promoter xD? -
ibysaiyan
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- 12-02-2010 14:47
(Original post by xXxBaby-BooxXx)
Don't you mean operator? The promoter is where the RNA polymerase sits, the operator is where the inhibiter sits/binds to. -
Remarqable M
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- 12-02-2010 16:05
what exactly is an operator??
and can someone please tell me what stuff from AS is unit 2 module 1 buildin upon?? im confused here
haven't we learned about protein synsthesis last year? -
xXxBaby-BooxXx
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- 12-02-2010 16:21
(Original post by Remarqable M)
what exactly is an operator??
and can someone please tell me what stuff from AS is unit 2 module 1 buildin upon?? im confused here
haven't we learned about protein synsthesis last year?
And the protein synthesis we learnt about was mainly protein structure etc.
It builds upon biological molecules (structure of DNA and proteins) organelles (eg ribosomes) mitosis a small amount, selective breeding, dominant/recessive alleles, variation, kingdoom/domain/species and natural/artificial selection.
So it builds upon a lot. Hope that helps -
ibysaiyan
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- 12-02-2010 16:25
(Original post by Remarqable M)
what exactly is an operator??
and can someone please tell me what stuff from AS is unit 2 module 1 buildin upon?? im confused here
haven't we learned about protein synsthesis last year? -
Remarqable M
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- 12-02-2010 16:27
(Original post by xXxBaby-BooxXx)
The Operator is just a region/length of DNA where the inhibitor binds to. It's next to the structural genes (Z and Y) that code for lactose permease and beta-galactosidase.
And the protein synthesis we learnt about was mainly protein structure etc.
It builds upon biological molecules (structure of DNA and proteins) organelles (eg ribosomes) mitosis a small amount, selective breeding, dominant/recessive alleles, variation, kingdoom/domain/species and natural/artificial selection.
So it builds upon a lot. Hope that helpsim glad you're part of this thread
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xXxBaby-BooxXx
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- 12-02-2010 16:29
(Original post by Remarqable M)
Thank you. This is very useful and good luck with gettin an A*im glad you're part of this thread
But thanks -
ibysaiyan
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- 12-02-2010 16:34
(Original post by xXxBaby-BooxXx)
Oh I'm not getting an A* in...well anything tbh. I'm on a B in biology at the moment, I'd like an A, but even that's fairly unrealistic. Stupid HSW. I wish exams were just factual recall, I'm not too bad at that.
But thanks.btw. remarq how is maths going =)?
Edit: I need some rest had a long session at the gym =/ .See you all later. -
Remarqable M
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- 12-02-2010 16:37
(Original post by ibysaiyan)
Nah we will get there xD i dont think i will be getting an A* due to my last years practicals but meh an A would do.btw. remarq how is maths going =)?
Edit: I need some rest had a long session at the gym =/ .See you all later.i like everything in c4
except vectors.
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ibysaiyan
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- 12-02-2010 16:42
(Original post by Remarqable M)
not too badi like everything in c4
except vectors.
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xXxBaby-BooxXx
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- 12-02-2010 16:44
(Original post by Remarqable M)
not too badi like everything in c4
except vectors.
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ibysaiyan
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- 13-02-2010 15:45
Hey all.. how is it going
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