Genetics and the evolution of life (BIOL10005): Exam thread

[claireb]

It said that a brown male mated with a red male or something like that. Obviously two males can't mate and produce offspring and you needed to know the phenotype of each gender as it was a sex linkage question I think.

Different question. This was the linkage one where you had 3 different genes, one was for colour, and it was simply either red or orange. No epistasis/codominance, etc.

Was replying to el's question about 34a. Should have quoted

[claireb]

There was also a stuff up for chem too. I wonder if this is going to be the case for all exams.

There were? Do you remember which ones? Didn't even notice them... Whoops

[Kingofrok33]

Didn't notice any chem stuff ups, although I did find it annoying that we pretty much had to guess whether Ni2+ was tetrahedral or octahedral in a coordination compound with water, as I don't think people could actually know such a thing beforehand. I guessed tetrahedral because it was 2+ and it seemed more likely, but when I googled it after, I saw it was octahedral. Looks like I'm having no luck with these exams haha

[Starlight]

Didn't notice any chem stuff ups, although I did find it annoying that we pretty much had to guess whether Ni2+ was tetrahedral or octahedral in a coordination compound with water, as I don't think people could actually know such a thing beforehand. I guessed tetrahedral because it was 2+ and it seemed more likely, but when I googled it after, I saw it was octahedral. Looks like I'm having no luck with these exams haha

I said octahedral. But I stuffed it up because I wrote all the ligands were OH! And I didn't write the coordination number fml.

There was also a stuff up for chem too. I wonder if this is going to be the case for all exams.

There were? Do you remember which ones? Didn't even notice them... Whoops

Pretty sure the multiple choice. I heard someone ask the examiner about it behind me. The question was like "what is the oxidation number of the cobalt atom" in some coordination compound. Except the metal centre was chromium and the counter ligand was carbon monoxide (CO) so it was all confusing.

[Kingofrok33]

Oh right the Cobalt-Chromium thing. I remember that. Idiots. You would think they'd re-read the exam before they handed it out to about 1000 students.

[seretide]

Didn't notice any chem stuff ups, although I did find it annoying that we pretty much had to guess whether Ni2+ was tetrahedral or octahedral in a coordination compound with water, as I don't think people could actually know such a thing beforehand. I guessed tetrahedral because it was 2+ and it seemed more likely, but when I googled it after, I saw it was octahedral. Looks like I'm having no luck with these exams haha

I said octahedral. But I stuffed it up because I wrote all the ligands were OH! And I didn't write the coordination number fml.

There was also a stuff up for chem too. I wonder if this is going to be the case for all exams.

There were? Do you remember which ones? Didn't even notice them... Whoops

Pretty sure the multiple choice. I heard someone ask the examiner about it behind me. The question was like "what is the oxidation number of the cobalt atom" in some coordination compound. Except the metal centre was chromium and the counter ligand was carbon monoxide (CO) so it was all confusing.

When I read that question I almost shit myself - I was looking at it like, did I miss something? Since when...ahh.. oh someone help me..

[VivaTequila]

There was another error on the Biology exam. The twins were II5 and II6, not II6 and II7.

[Starlight]

There was another error on the Biology exam. The twins were II5 and II6, not II6 and II7.

Please don't tell me that was the correct answer...

[jinny1]

There was another error on the Biology exam. The twins were II5 and II6, not II6 and II7.

Please don't tell me that was the correct answer...

Yea there were no twins II6/7 so i was confused....

But if the exam meant II5/6 then it would have been right since they were monozygous....i think

[jinny1]

Man the fossils! I only knew one.. archaeopteryx.

Pretty much forgot about x inactivation, the angiosperms question was expected (but my fourth reaason was pretty crap), made up complete bs about the selection questions. Yeah I probably did waste a little bit of time, but I guess its bonus marks.

I got lucky with the fossils.. I knew about Acanthostega because of one of the questions the same exam asked what was unusual about the first tetrapods (8 digits). I knee of them were ammonites or trilobites; then i remembered trilobites were arthropods from the exam exam so i picked the insect looking thing as trilobite and the snail looking thing as ammonite. the bird one was pretty obvious.

I guess section D depends sort of on luck and how much you know about the topic. IF i have gotten a question about distinction between sub-classes and a question about DNA manipulation (methylation/acetylation) then i probably would've failed lol.

EDIT:

Just got an email from Dawn saying

Dear Students,

Unfortunately there were two questions on the exam today in which there were
errors.

Please be reassured that the questions affected by these errors will not be
included in the assessment.

Regards, Dawn

[VivaTequila]

Man the fossils! I only knew one.. archaeopteryx.

Pretty much forgot about x inactivation, the angiosperms question was expected (but my fourth reaason was pretty crap), made up complete bs about the selection questions. Yeah I probably did waste a little bit of time, but I guess its bonus marks.

I got lucky with the fossils.. I knew about Acanthostega because of one of the questions the same exam asked what was unusual about the first tetrapods (8 digits). I knee of them were ammonites or trilobites; then i remembered trilobites were arthropods from the exam exam so i picked the insect looking thing as trilobite and the snail looking thing as ammonite. the bird one was pretty obvious.

I guess section D depends sort of on luck and how much you know about the topic. IF i have gotten a question about distinction between sub-classes and a question about DNA manipulation (methylation/acetylation) then i probably would've failed lol.

EDIT:

Just got an email from Dawn saying

Dear Students,

Unfortunately there were two questions on the exam today in which there were
errors.

Please be reassured that the questions affected by these errors will not be
included in the assessment.

Regards, Dawn

Sorry to crush your confidence, but Ammonite was the Omastar looking thing and the Trilobite was the Kabuto type thing. They were both on there.

I happened to know all 5 fossils from completely distinct, random, separate phenomena. I remember looking through the lecture notes thinking "I really want to know what a hallucigenia looks like[/b], so I looked it up.

The others, I dunno. I just knew them lol.

[golden]

Did everyone pick up the error in Section B Q 4 with the 3 point test cross?

The heterozygote in the test cross was written as  (_,_,orange) when in fact it should have been (_,_,red) because looking at the offspring, none of the 2 phenotypes with 400+ had the phenotype (_,_,orange) but one did with (_,_,red). I couldn't believe they could make such an error. And I don't think everyone was told either as no announcement was made.

For our one there was an error with a 3 point test cross question, but they gave marks because there was an error (in one word in the question) lol. They sent us the email (but I do BIOL10002).

[jinny1]

Man the fossils! I only knew one.. archaeopteryx.

Pretty much forgot about x inactivation, the angiosperms question was expected (but my fourth reaason was pretty crap), made up complete bs about the selection questions. Yeah I probably did waste a little bit of time, but I guess its bonus marks.

I got lucky with the fossils.. I knew about Acanthostega because of one of the questions the same exam asked what was unusual about the first tetrapods (8 digits). I knee of them were ammonites or trilobites; then i remembered trilobites were arthropods from the exam exam so i picked the insect looking thing as trilobite and the snail looking thing as ammonite. the bird one was pretty obvious.

I guess section D depends sort of on luck and how much you know about the topic. IF i have gotten a question about distinction between sub-classes and a question about DNA manipulation (methylation/acetylation) then i probably would've failed lol.

EDIT:

Just got an email from Dawn saying

Dear Students,

Unfortunately there were two questions on the exam today in which there were
errors.

Please be reassured that the questions affected by these errors will not be
included in the assessment.

Regards, Dawn

Sorry to crush your confidence, but Ammonite was the Omastar looking thing and the Trilobite was the Kabuto type thing. They were both on there.

I happened to know all 5 fossils from completely distinct, random, separate phenomena. I remember looking through the lecture notes thinking "I really want to know what a hallucigenia looks like[/b], so I looked it up.

The others, I dunno. I just knew them lol.

What do you mean?

I got them right... Trilobite,ammonite and hallucigenia.

Trilobite = insect looking one
ammonite = the large snail
Hallucigena= spiky worm on both sides

Edit: maybe poor wording on my previous post i think..i didin't proof read it lol

The acanostega was the 8 fingered tetrapod i think and the bird was the archerotexy or some name like that...

[Starlight]

How did you guys know the diagrams? I don't even remember what lecture they were in, I remember the archaeopteryx one though

[jinny1]

How did you guys know the diagrams? I don't even remember what lecture they were in, I remember the archaeopteryx one though

The sample exam had questions about which species died during the two extinction periods so i had to learn about Trilobites (Cretaceous-Tertiary) and Ammonites (Permian-Triassic).

The Hallucigenia i vaguely remember the lecturer talking about how they named it so when they thought they were hallucinating lol.

And the 8 digit tetrapod was in one of the sample exam question so i knew what it looked like...