Qualification > Sciences
Biolgy paper 1 help!
Friends:
Ok still someone is -repping me >:( >:( >:( >:( >:( >:(
OR
This system is going crazy!!!!!
nid404:
--- Quote from: Friends on June 06, 2009, 06:52:58 am ---Ok still someone is -repping me >:( >:( >:( >:( >:( >:(
This system is going crazy!!!!!
--- End quote ---
even mine's goin down. >:(
heyy does any1 have the mark scheme for june 2000 and 2001 paper 3 biology
Friends:
--- Quote from: nid404 on June 06, 2009, 06:56:07 am ---
--- Quote from: Friends on June 06, 2009, 06:52:58 am ---Ok still someone is -repping me >:( >:( >:( >:( >:( >:(
This system is going crazy!!!!!
--- End quote ---
even mine's goin down. >:(
heyy does any1 have the mark scheme for june 2000 and 2001 paper 3 biology
--- End quote ---
No i dont have the mark-scheme of 2000 and 2001
Ok the rep is back to normal ;D ;D ;D ;D
vivek_metallica:
I agree thukon but A also had a 3:1 ratio, i dont remember the genotypes, but im pretty sure that it was that ratio, additionally, my point was it said said that one of the parent phenotype had one yellow genotype, therefore it cant be Pp for both as 'P' is dominant to 'p', therefore both the phenotypes of the parents would be purple..
thukon:
--- Quote from: vivek_metallica on June 06, 2009, 06:58:19 am ---I agree thukon but A also had a 3:1 ratio, i dont remember the genotypes, but im pretty sure that it was that ratio, additionally, my point was it said said that one of the parent phenotype had one yellow genotype, therefore it cant be Pp for both as 'P' is dominant to 'p', therefore both the phenotypes of the parents would be purple..
--- End quote ---
First of all, one of the parents couldnt be yellow and still combine to give a 3:1 ratio. Its impossible.
And it never said anything like that one parent is yellow. All it asked was what are the genotypes of the parents.
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