It's over!

[enwiabe]

Could you please scan it in?

[emkate]

oh really..any chance you could post it up? i cant remember what the actual question was...

[shea43]

The results didn't show that the mother had both a mutant and a normal allele. the green dye was from a normal example of that section of DNA. The red dye was her sample of that section. the fact that the green dye bound to the normal allele and the red one to the mutant allele probably meant that she had the same mutation in both copies of the gene. The green dye was just a sample of that gene, it had no connection to the mother.

I thought that the normal part of the allele was shown to be the first part of the DNA. It had an arrow pointing to the nucleotide sequence which was the same as the normal segment of the allele. And the results had a note saying that below is Person X's results, clearly indicating that she had a normal section of an allele as well

[classy1112]

Q 7 says :
DNA microarray technology has been used to survey the p53 gene because a mutation of this gene is present in about 60% of all cases. The position of a mutation in the p53 gene of a patient, patient X, who has breast cancer can be determined.

The question doesn't specificially state whether the mutation was chance or genetic

[simpak]

The results didn't show that the mother had both a mutant and a normal allele. the green dye was from a normal example of that section of DNA. The red dye was her sample of that section. the fact that the green dye bound to the normal allele and the red one to the mutant allele probably meant that she had the same mutation in both copies of the gene. The green dye was just a sample of that gene, it had no connection to the mother.

Are you sure about that?
I considered that, but it was phrased AS
The results for person X (or whatever they were called) were:

Green Black Red Black

Which would infer that IN HER RESULTS, green dye showed.

[classy1112]

i haven't got access to a scanner at the moment, surely someone else took a copy of it?

[simpak]

Q 7 says :
DNA microarray technology has been used to survey the p53 gene because a mutation of this gene is present in about 60% of all cases. The position of a mutation in the p53 gene of a patient, patient X, who has breast cancer can be determined.

The question doesn't specificially state whether the mutation was chance or genetic

They're going to have to accept both answers, then.
Unless it does in a sneaky fashion.
Good job, VCAA.

[classy1112]

i'll try and get access to a scanner and upload it

[cochra]

I'm pretty sure that the question stated that the green dye was a normal version from elsewhere. I may be wrong, i was rushing on that question.

[classy1112]

How did you people outline how isolation may result in speciation?

[classy1112]

the normal strand was labelled with green flourescent dye

[simpak]

How did you people outline how isolation may result in speciation?

In simple terms:
1.  original population has genetic variation.
2.  original population is split into two different populations separated by a geographic barrier: NO GENE FLOW.
3.  different selection pressures acting on each population.
4.  when they are reintroduced, they cannot interbreed to produce viable fertile offspring.

i think the three marks are for points 2, 3 and 4, but i put in 1 just to be sure.

[kenhung123]

6 pages already..wow.. I think an A+ is 7x%

[classy1112]

yeah i stated points 2,3,4 in my answer. I know of people who left the 3 mark translation question completely blank

[simpak]

6 pages already..wow.. I think an A+ is 7x%

It's usually 75%
I so hope I still make that.