Biology Exam: Answers and Discussion!

[Han123]

Phew! What did you guys think of the last question on pedigree analysis? The one talking about what the study of traits expressed by the twins may reveal?

I thought it was a bit tricky, but I just specified that any genetic trait would be share by both as they have the same genetic material, and any differences would be due to environmental factors

[ennioc]

Phew! What did you guys think of the last question on pedigree analysis? The one talking about what the study of traits expressed by the twins may reveal?

The twins are genetically identical but they could be phenotypically different as phenotype is influenced by the environment.

The question asked about the trait being expressed so you needed to talk of phenotype

[extremeftw]

 What was the experimental design question? I don't seem to remember it.

[katiesaliba]

Phew! What did you guys think of the last question on pedigree analysis? The one talking about what the study of traits expressed by the twins may reveal?

I wrote that environmental factors would result in slightly different phenotypes as genetic material would be identical.

The one with the female and male diploid? I think that was about the queen bee, and how she produced eggs and if they are fertilised then its a female, whereas if its a male 'drone' its unfertilised and therefore haploid.
yeah i got 16 for the male somatic cell and 32 for the female somatic cell.
And then the question about why male drones exhibit genotypic variation, and how that benefits the species or something like that

I got 16 and 32 too. For the genetic variation I just wrote crossing over or independent assortment and kinda elaborated on them both.

[Coralista]

What was the experimental design question? I don't seem to remember it.

That was the last question on the polypeptide accumulating in nucleus of a cell

[extremeftw]

That was the last question on the polypeptide accumulating in nucleus of a cell

 Ohh, right. I quite liked that question. Just had a memory blank with recalling it ha!

[vox nihili]

Sooooo....I'm glad I did Biol in 2012 :|

[Yacoubb]

Sooooo....I'm glad I did Biol in 2012 :|

Yeah I'm glad I did it last year!!

[Coralista]

Sooooo....I'm glad I did Biol in 2012 :|

VCAA definitely stepped up their game this year alright!

[Reus]

The one with the female and male diploid? I think that was about the queen bee, and how she produced eggs and if they are fertilised then its a female, whereas if its a male 'drone' its unfertilised and therefore haploid.
yeah i got 16 for the male somatic cell and 32 for the female somatic cell.
And then the question about why male drones exhibit genotypic variation, and how that benefits the species or something like that

I said 31 and 15 since as it asked for the chromosomes in the somatic cells only. :/ don't tell me i screwed up again. ahhhhh

[grannysmith]

Sooooo....I'm glad I did Biol in 2012 :|

2012 exams were sooo much easier IMO haha

[apoorva1996]

I said 31 and 15 since as it asked for the chromosomes in the somatic cells only. :/ don't tell me i screwed up again. ahhhhh

Yeah I did 30 and 15 because it was somatic? Is that wrong?

[katiesaliba]

I said 31 and 15 since as it asked for the chromosomes in the somatic cells only. :/ don't tell me i screwed up again. ahhhhh

Sex-chromosomes are present in somatic cells 

[Yacoubb]

I said 31 and 15 since as it asked for the chromosomes in the somatic cells only. :/ don't tell me i screwed up again. ahhhhh

Sex chromosomes and autosomes are present in somatic cells.

[Reus]

Well there goes another mark.