It's over!

[kenhung123]

You know the question asking OUTLINE how someone can predict if the organism was heterozygous for 2 gene loci. Did you need to show the cross? I was like why are they leaving a big space here for just "test cross answer"?

You needed to say test cross and then show the cross.
Whenever they leave that kind of space, they always intend you should show the cross.
Again, it was ambiguous.

Yea i showed the cross anyway. I said it should show 1:1:1:1 phenotypic ratio if on same chromosome not in that ratio. Is that sufficient?

[LFTM]

what about the isolation - speciation question eh? (L) for VSSRIG . i wrote like the whole page even though they only gave you half the page for that answer. i just kept going XD

i just wrote 3 main points.
1. geographical barrier prevents gene flow
2. the two populations are exposed to different selection pressures
3. overtime, the two populations become so different they can no longer interbreed.

[Studyinghard]

You know the question asking OUTLINE how someone can predict if the organism was heterozygous for 2 gene loci. Did you need to show the cross? I was like why are they leaving a big space here for just "test cross answer"?

You needed to say test cross and then show the cross.
Whenever they leave that kind of space, they always intend you should show the cross.
Again, it was ambiguous.

Yea i showed the cross anyway. I said it should show 1:1:1:1 phenotypic ratio if on same chromosome not in that ratio. Is that sufficient?

yeh that should do it. except i did one for homozygous dominant in both genes and also one cross if they were heterozygous only for one gene.

PS: i luv dihybrid crosses

[kenhung123]

what was the answer for the last question... was it red, green or black? i said it could either be red or green coz the daughter would have inherited one of the alleles from the mother who had green and red in the microarray

i was gonna say red OR green but the question . which would it be red,green or black. i didnt see anything asking for a possible 2 options so i just stuck with green.

Some people said no because somatic mutation. But yea thats a good point why in reference to green, red, black? Don't tell me there is some significant use of that dye?

[roberem]

what was the answer for the last question... was it red, green or black? i said it could either be red or green coz the daughter would have inherited one of the alleles from the mother who had green and red in the microarray

i was gonna say red OR green but the question . which would it be red,green or black. i didnt see anything asking for a possible 2 options so i just stuck with green.

yeh i think it was green because they said they only tested the daughters first fragment and the mothers first fragment was green...

[Studyinghard]

Yeah me too.
When they leave a space, they were asking for it.

OKAY YOU GUYS.
I'M GOING TO ATTEMPT TO GET OFF THE INTERNET.
AND DO METHODS.
FFFF.
I'M GOING TO FAIL THE REST OF YEAR 12 IF I KEEP REFRESHING THIS THREAD.
ttyl.

i shall do the same and go off. except not study. only one yr 12 subject this year. time to play some games! good luck though /:P

[mandy]

Yeah me too.
When they leave a space, they were asking for it.

OKAY YOU GUYS.
I'M GOING TO ATTEMPT TO GET OFF THE INTERNET.
AND DO METHODS.
FFFF.
I'M GOING TO FAIL THE REST OF YEAR 12 IF I KEEP REFRESHING THIS THREAD.
ttyl.

i shall do the same and go off. except not study. only one yr 12 subject this year. time to play some games! good luck though /:P

LOL, IM JUST SITTING HERE AND REFRESHING TOO.

[Studyinghard]

Yeah me too.
When they leave a space, they were asking for it.

OKAY YOU GUYS.
I'M GOING TO ATTEMPT TO GET OFF THE INTERNET.
AND DO METHODS.
FFFF.
I'M GOING TO FAIL THE REST OF YEAR 12 IF I KEEP REFRESHING THIS THREAD.
ttyl.

i shall do the same and go off. except not study. only one yr 12 subject this year. time to play some games! good luck though /:P

LOL, IM JUST SITTING HERE AND REFRESHING TOO.

oh no there is a patch for my game. means i have to wait. more refreshing

[silva]

You know the question asking OUTLINE how someone can predict if the organism was heterozygous for 2 gene loci. Did you need to show the cross? I was like why are they leaving a big space here for just "test cross answer"?

You needed to say test cross and then show the cross.
Whenever they leave that kind of space, they always intend you should show the cross.
Again, it was ambiguous.

Yea i showed the cross anyway. I said it should show 1:1:1:1 phenotypic ratio if on same chromosome not in that ratio. Is that sufficient?

thats the case if it was hetero
but i thought you might of had to mention that you couldnt tell if they were on the same chromosome if the unkown plant was homo at both genes because then all offspring would show dominant phenotype regardless of them being on same or diff. chromosomes
dunno if thats right tho...i ended writing a lot for that 2 line qs

[jake]

in that mc question about the pigs they wanted us to pick the cross between the asian pig being female and the british pig being male

[Studyinghard]

okay overall for anyone panicking abotu a bad grade. i think we all agree it was a hard exam. an A+ will be relatively low mark compared to other yrs.

so dont fret. and biology isnt an easy subject. and if ur in yr 11 just chill theres next yr yeh ?

and time to leave u guys to it . have a good one.

[LFTM]

in that mc question about the pigs they wanted us to pick the cross between the asian pig being female and the british pig being male

yea cos the asian pig is the one that produces more offspring.

[kenhung123]

You know the question asking OUTLINE how someone can predict if the organism was heterozygous for 2 gene loci. Did you need to show the cross? I was like why are they leaving a big space here for just "test cross answer"?

I guess if you said its hetero if it was...........1 1 1 1 and if you said that you can say yes. If its not 1 1 1 1 then its linked i guess

You needed to say test cross and then show the cross.
Whenever they leave that kind of space, they always intend you should show the cross.
Again, it was ambiguous.

Yea i showed the cross anyway. I said it should show 1:1:1:1 phenotypic ratio if on same chromosome not in that ratio. Is that sufficient?

thats the case if it was hetero
but i thought you might of had to mention that you couldnt tell if they were on the same chromosome if the unkown plant was homo at both genes because then all offspring would show dominant phenotype regardless of them being on same or diff. chromosomes
dunno if thats right tho...i ended writing a lot for that 2 line qs

[shokstar]

You know the question asking OUTLINE how someone can predict if the organism was heterozygous for 2 gene loci. Did you need to show the cross? I was like why are they leaving a big space here for just "test cross answer"?

I guess if you said its hetero if it was...........1 1 1 1 and if you said that you can say yes. If its not 1 1 1 1 then its linked i guess

You needed to say test cross and then show the cross.
Whenever they leave that kind of space, they always intend you should show the cross.
Again, it was ambiguous.

Yea i showed the cross anyway. I said it should show 1:1:1:1 phenotypic ratio if on same chromosome not in that ratio. Is that sufficient?

thats the case if it was hetero
but i thought you might of had to mention that you couldnt tell if they were on the same chromosome if the unkown plant was homo at both genes because then all offspring would show dominant phenotype regardless of them being on same or diff. chromosomes
dunno if thats right tho...i ended writing a lot for that 2 line qs

You had to say that yes it is possible. Cos in a test cross if the PHENOTYPIC ratio is 1:1:1:1 then they are unlinked, or on different chromosomes. A different ratio would mean that they are linked, or on the same chromosome.

[jake]

i reckon the examiners would have to mark us leniently