Biolgy paper 1 help!

[Friends]

Ok now who the HELL is -repping me..

[nid404]

@friends:did u just -rep me.it's ok if u have but i wanna know cuz sanity_master said there's a problem with the rep system but others' rep seems to remain and mine seems to go down despite all the help i provide

heyy i don't remember the options in the order

but there was


bacteria increase
dissolved oxygen decreases
fishes die
anaerobic bacteria increase

You think YOU have a problem with rep?

haha after looking at yours,definitely.

AHHH IT WENT DOWN AGAIN!!!!

so unfair for the one's who help
ive tried helping u so many times to bring your rep back to normal but it doesn't work

[nid404]

Ok now who the HELL is -repping me..

the system is buggered up.

[Friends]

Ok tell me if u know the ANSWERS of 40
LIKE C was 2-1-4-3

[nid404]

Ok tell me if u know the ANSWERS of 40
LIKE C was 2-1-4-3

I know it was D but i don't remember the order

[Friends]

Ok still someone is -repping me
            OR
This system is going crazy!!!!!

[nid404]

Ok still someone is -repping me
This system is going crazy!!!!!

even mine's goin down.

heyy does any1 have the mark scheme for june 2000 and 2001 paper 3 biology

[Friends]

Ok still someone is -repping me
This system is going crazy!!!!!

even mine's goin down.

heyy does any1 have the mark scheme for june 2000 and 2001 paper 3 biology

No i dont have the mark-scheme of 2000 and 2001
Ok the rep is back to normal

[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]

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..

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.

[nid404]

It can give ratio of 3:1
But 3 yellow is to 1 purple.
pp x Pp

                 p              p
P               Pp            Pp   
p              pp             pp
 1:1 ratio

[XaM!!]

wat ws da ans of dat kidney ques......

[Friends]

wat ws da ans of dat kidney ques......

Artery and Vein

[°o.O-hash94-O.o°]

artery and vein this was little confusing for many students!!

but i got right but i am stuck at the last question i wrote C

can someone plz give the correct answer!

[Friends]

Plzz see first and second page of this topic.