ATAR Notes: Forum
Archived Discussion => Written Examinations => 2008 => End-of-year exams => Exam Discussion => Victoria => Biology => Topic started by: bucket on November 03, 2008, 01:49:28 pm
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Uhm yeah, the paper was slightly crumpled :P
Here is the multiple choice:
(http://img45.imageshack.us/img45/8818/scan0001vz2.jpg) (http://img255.imageshack.us/img255/3228/scan0002hb8.jpg)
(http://img443.imageshack.us/img443/4311/scan0003pe9.jpg) (http://img262.imageshack.us/img262/4691/scan0004wv7.jpg)
(http://img223.imageshack.us/img223/2604/scan0005fa3.jpg) (http://img120.imageshack.us/img120/2470/scan0006wn1.jpg)
(http://img503.imageshack.us/img503/2518/scan0007dl5.jpg) (http://img243.imageshack.us/img243/530/scan0008tz5.jpg)
(http://img142.imageshack.us/img142/5691/scan0009da6.jpg) (http://img443.imageshack.us/img443/3011/scan0010un8.jpg)
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Here is short answer:
[IMG]http://img338.imageshack.us/img338/1552/scan0001fj3.th.jpg[/img] [IMG]http://img255.imageshack.us/img255/2751/scan0002vw8.th.jpg[/img] [IMG]http://img354.imageshack.us/img354/7016/scan0003vn3.th.jpg[/img] [IMG]http://img338.imageshack.us/img338/8959/scan0004hk1.th.jpg[/img] [IMG]http://img401.imageshack.us/img401/3979/scan0005mf7.th.jpg[/img] [IMG]http://img443.imageshack.us/img443/5985/scan0006vm6.th.jpg[/img]
[IMG]http://img243.imageshack.us/img243/5214/scan0007ku0.th.jpg[/img] [IMG]http://img375.imageshack.us/img375/5977/scan0008kq8.th.jpg[/img] [IMG]http://img61.imageshack.us/img61/6062/scan0009ei2.th.jpg[/img] [IMG]http://img230.imageshack.us/img230/2788/scan0010ya1.th.jpg[/img] [IMG]http://img267.imageshack.us/img267/2954/scan0011au9.th.jpg[/img][IMG]http://img205.imageshack.us/img205/5237/scan0012wq9.th.jpg[/img][IMG]http://img205.imageshack.us/images/thpix.gif[/img]
Is it ok to view like this? or should I just post the full sized images like with multiple choice?
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wow...thanks!
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My answers for MC, tell me if you disagree:
1. C 2. A 3. C 4. D 5. B
6. B 7. A 8. B 9. D 10. A
11. D 12. C 13. A 14. C 15. B
16. D 17. B 18. B 19. B 20. C
21. C 22. A (especially not sure) 23. C 24. D 25. D
Not sure on all of these so don't hesitate to tell me if I'm wrong
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My answers for MC, tell me if you disagree:
1. C 2. A 3. C 4. D 5. B
6. B 7. A 8. B 9. D 10. A
11. D 12. C 13. A 14. C 15. B
16. D 17. B 18. B 19. B 20. C
21. C 22. A (especially not sure) 23. C 24. D 25. D
I got the same except 22- i put B as i water would be more of a problem than light?
Not sure on all of these so don't hesitate to tell me if I'm wrong
Got the same except for 22 i got B- i figured water would be more of a problem than light?
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I thought they would get water through roots not leaves...
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With q22 I put D, high ambient temperatures.
I can't be A because if there was competition for light the leaves would grow upwards. :S And I thought that reduced width would retain water more effectively... and reduce evaporation or something? I don't know lol.
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haha, i thought the leaves were facing downwards to get water... silly.. forget basic biology where plants get water from roots
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I thought they would get water through roots not leaves...
oh crap yes...so either A or D
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With q22 I put D, high ambient temperatures.
I can't be A because if there was competition for light the leaves would grow upwards. :S And I thought that reduced width would retain water more effectively... and reduce evaporation or something? I don't know lol.
what do you mean "leaves would grow upwards"?
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Why is the number of autosomes in MC 1 44?
http://upload.wikimedia.org/wikipedia/commons/5/53/NHGRI_human_male_karyotype.png
That shows 22. o_o
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If there was competition for sunlight, why would the leaves grow away from the sunlight??
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Why is the number of autosomes in MC 1 44?
http://upload.wikimedia.org/wikipedia/commons/5/53/NHGRI_human_male_karyotype.png
That shows 22. o_o
22 pairs of autosomes, but 44 autosomes. I'm pretty sure I made that mistake on a trial exam so I wasn't going to make it again...although if VCAA thinks otherwise....
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Why is the number of autosomes in MC 1 44?
http://upload.wikimedia.org/wikipedia/commons/5/53/NHGRI_human_male_karyotype.png
That shows 22. o_o
Shows 22 PAIRS...if you take the paternal and maternal as separate chromosomes there are double that, hence 44
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A question about Karyotyping....they usually get them when the cell is in interphase right? (when they're condensed?) if that's the case then why aren't they all doubled...as in two chromatides per maternal and paternal chromosome?
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prophase isn't it?
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You going to put up the short awnsers mate?
Cheers
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They're up.
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Cheers Mate
Eketchh!!!!
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prophase isn't it?
It is? But wouldn't they still be double?
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Yeah they should be, I have no idea why they aren't :S
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Judging on NE2000's answers, I got 16/25. :(
And short answer questions... well I don't even want to go there. Terrible, terrible, terrible.
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I got 24/25 if NE2000 is correct for multiple choice, damnit, wasn't sure about question 8 and guessed between b and c, and guessed c
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I got 24/25 if NE2000 is correct for multiple choice, damnit, wasn't sure about question 8 and guessed between b and c, and guessed c
Not sure about Q8 either, my only issue with c was that it would be quite amazing to get the one gene having the alleles that produces such a distribution. There would have to be lots of intermediate dominance and complete dominance relationships. The problem with b was that i wasn't a curve; so it could go either way, but I think b is more feasible on the information given.
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q8 is deffinitely B. The graph shows continuous variation which means that the phenotype is polygenic. (I had a similar question in a prac exam)
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yeah i said b
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i wasn't sure if the graph showed continuous or not thats why i thought it could be c, that could produce distinct phenotypes and if there were three types alleles for the locus then the rage of variations shown would be possible.
not sure if that makes sense, but it does in my head :uglystupid2:
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My answers for MC, tell me if you disagree:
1. C 2. A 3. C 4. D 5. B
6. B 7. A 8. B 9. D 10. A
11. D 12. C 13. A 14. C 15. B
16. D 17. B 18. B 19. B 20. C
21. C 22. A (especially not sure) 23. C 24. D 25. D
Not sure on all of these so don't hesitate to tell me if I'm wrong
Hey i roughly said the same answers. except Q11, i said C and i kinda still stand by it (please feel free to point out why i'm wrong!!)
Also Q14, i'm no good with punnett squares but i was fairly sure it was 1/2, basing on my (maybe delusional) idea that the cross was of Pp with a PP.
Also question 23 was really badly worded - because none of the answers were really correct, i ended up putting D, because i figured that was the MOST correct, but then changed it to C, because although the wording sounded like "the chance mutation" was created by the use of insecticide (which is wRONG), i thought maybe that was the intended answer. I hope its discluded due to ambiguity or something!!
Oh and i stand by my answer for Q 24: C,
There was no evidence on the tree that could confirm allopatric speciation. so yeah thats why i chose C. But i hate biology, so i'm probably wrong.
DO NOT know why i'm even reading this. hate hate hate hate hate biology.
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are we sure question 4a? (about the sailors) was not referring to things like considering genetic predispositions, rather than experimental design?
perhaps they were all genetically inferior being from new zealand anyway :p (im from nz, dont worry)
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if they didnt specify, maybe they'll give marks for both
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would someone like to explain the multiple choice question 14. im pretty sure the answer was 2/3 but how?
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My answers for MC, tell me if you disagree:
1. C 2. A 3. C 4. D 5. B
6. B 7. A 8. B 9. D 10. A
11. D 12. C 13. A 14. C 15. B
16. D 17. B 18. B 19. B 20. C
21. C 22. A (especially not sure) 23. C 24. D 25. D
Not sure on all of these so don't hesitate to tell me if I'm wrong
Hey i roughly said the same answers. except Q11, i said C and i kinda still stand by it (please feel free to point out why i'm wrong!!)
Also Q14, i'm no good with punnett squares but i was fairly sure it was 1/2, basing on my (maybe delusional) idea that the cross was of Pp with a PP.
Also question 23 was really badly worded - because none of the answers were really correct, i ended up putting D, because i figured that was the MOST correct, but then changed it to C, because although the wording sounded like "the chance mutation" was created by the use of insecticide (which is wRONG), i thought maybe that was the intended answer. I hope its discluded due to ambiguity or something!!
Oh and i stand by my answer for Q 24: C,
There was no evidence on the tree that could confirm allopatric speciation. so yeah thats why i chose C. But i hate biology, so i'm probably wrong.
DO NOT know why i'm even reading this. hate hate hate hate hate biology.
That's fair enough. My reasoning:
Q11. Darwin didn't know about alleles, he just talked about characteristics being inherited
Q14. II-4 and II-5 were heterozygous, that's the only where III-1 could be pp. Hence there was a 1/2 chance of III-3 being heterozygous. However, as we know that they are unaffected, this chance is reduced to 2/3
Q23. By my understanding the phenotype is 'sensitive' or 'resistant' regardless of whether a selective agent is acting on the population. Hence an agent will not affect the phenotype. A and B are incorrect
Q24. I just used elimination. If it is C that would be hugely ambiguous wording. I'm pretty sure appearing in the fossil record earlier is what you say about older fossils...ah well...
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oh i knew i should have put 2/3!
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Q14. II-4 and II-5 were heterozygous, that's the only where III-1 could be pp. Hence there was a 1/2 chance of III-3 being heterozygous. However, as we know that they are unaffected, this chance is reduced to 2/3
YESSS YESSSSSSSS
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one would think the writers would gradually get better at this, no?
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yeah i thought so too man..
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What do you mean by "because we know they are unaffected"?
They are referring to a genotype not the phenotype.
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to lighten the mood:
"if i could be an enzyme, id wanna be a DNA helicase so I could unzip your genes.
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lmao, mood lightened. thankyou.. i'm obsessively readingg this forum, but i know i should move on and study for other examss
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LOOOOOOOL
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lmao, mood lightened. thankyou.. i'm obsessively readingg this forum, but i know i should move on and study for other examss
yea.......shit......i've wasted 5hrs of study reading these forums
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i got the same answers as NE2000 except for Q11 about Darwins theory of natural selection. - i chose D but it was wrong, the answer is D according to my teacher because C said that favourable alleles were passed on from parents to offspring. Which is wrong because whether the alleles are favourable of not, they are still passed on to the offspring. So its D because particular characteristics suit and organism to its environment. An example of this is lions having thick coats to keep them warm during the cooler months on the savana. Or something. lol.
would someone like to explain the multiple choice question 14. im pretty sure the answer was 2/3 but how?
In the pedigree above question 14 it shows that they (III-3) do not show the trait and besides that, in the actualy question it says: 'The following pedigree shows a family in which <b>two</b> members have PKU'
Seeing II-3 and III-1 are already affected, III-3 cannot be according to what they have written and drawn.
According to my teachers answers n the C being correct (if it is) NE2000 got 25/25 i think :o wow lucky you. lol
i only get 21 if Q14 is right. grr lol.
Aimee :)
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i know i've asked this before, but couldn't bacteria be considered a vector? I've been searching online (lol) and i've found something called a "yeast-bacterial shuttle vector".
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yeah and on that note, i just said virus and not retrovirus, i'm screwed right?
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According to my teachers answers n the C being correct (if it is) NE2000 got 25/25 i think :o wow lucky you. lol
lol that makes me feel a bit better. I always liked MC more than SA, mainly because I have problems expressing myself
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to lighten the mood:
"if i could be an enzyme, id wanna be a DNA helicase so I could unzip your genes.
omg this made me laugh so much XP after seeing spesh solutions i really needed this, thanks~! haha
oh and what did people think of that questions about the mutated chromosomes with the person X thing?
for me.. i thought it was kind of out of the blue o_o i was like "huh?"
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Yeah I really had to think hard to come up with an answer :S but that's probably because I hardly studied for bio this time around :(
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hmm
I had a brain freeze when it came to draw the evolution thing.
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i had a super hard time with the providing evidence questions (the last two questions)
they hardly gave us enough information to use and both the theories seemed kinda.. the same to me ><
i found the wording for some of the questions was a bit dodgy too but thats prob cos my english suxors.
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I think ill be around 19-22/25. I didn't check all cause all didnt open. But thats not too bad considering.
I think my SH will be better (hopefullyy!)
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i so should not have read that.
i will spend the next 7 weeks in like ultimate depression.
A+ COME BACK PLEASE D=<<
ARGH I CIRCLED THE WRONG ONE FOR 9 LOL .___. LIKE I KNEW WHICH ONE WAS RIGHT I JUST CIRCLED C CAWZ IM DUMB.
*smackhead, okay im done.
22/25 NO 45+ FOR ME. *chucks a spastic.
ah jokes.. (not really)...
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i so should not have read that.
i will spend the next 7 weeks in like ultimate depression.
A+ COME BACK PLEASE D=<<
ARGH I CIRCLED THE WRONG ONE FOR 9 LOL .___. LIKE I KNEW WHICH ONE WAS RIGHT I JUST CIRCLED C CAWZ IM DUMB.
*smackhead, okay im done.
22/25 NO 45+ FOR ME. *chucks a spastic.
ah jokes.. (not really)...
Pretty sure if you aced the rest of the exam, those three marks won't make a biiiig difference. That is of course if you performed just as well in your mid years. :)
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Ugh I promised myself I wouldn't read this thread because I didn't want to make myself upset lol...but I gave in to temptation haha!
I think I got around 23-24/25 for the MC...short answer I effed up the very first question out of pure stupidity so that's at least 1 mark gone...and I believe all that bad wording will cost me even more, although I finished.
Like cookie_dough I'm after a 45+ so I hope I didn't lose too many! :S I'm not going to stress though...and yeah username is right, cookie_dough - no need to be depressed, you've still done really well no matter what you think!
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I stuffed upo question 1 in the SA lol cos im an idiot i drew an X at 2 for B and 2 for D gah. lol
Aimee :)
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^ That's EXACTLY what I did...and I knew it the minute we had to stop writing. I already had doubts in my mind throughout writing time, but I never went to change it. I should have listened to my instincts. Gahh. I screwed it up coz I completely blanked on which label in the cell cycle denoted the DNA replication stage... >_<"
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I had in the back of my mind to go back to the climate change question with the frogs coz I really poorly answered that, but I forgot until the end of the exam when they said pens down and I just looked at that page and...
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I couldn't tell if the frogs were still alive or not. Like could you still get them but ah well mark gone.
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I had in the back of my mind to go back to the climate change question with the frogs coz I really poorly answered that, but I forgot until the end of the exam when they said pens down and I just looked at that page and...
The answer needed to include how the changing climate had on how the frog moved onto a different environments didn't it?
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I had in the back of my mind to go back to the climate change question with the frogs coz I really poorly answered that, but I forgot until the end of the exam when they said pens down and I just looked at that page and...
The answer needed to include how the changing climate had on how the frog moved onto a different environments didn't it?
Yes.
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I had in the back of my mind to go back to the climate change question with the frogs coz I really poorly answered that, but I forgot until the end of the exam when they said pens down and I just looked at that page and...
The answer needed to include how the changing climate had on how the frog moved onto a different environments didn't it?
Yes.
Didn't you put a good answer in? I think a few posts back you said what answer you had and it sounded fine.
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For question 1 I put B: 4 and D:2. Is this possibly correct?
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^ Yes!
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They're up.
where do i find them???
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WOW COOL How did you get this! Never mind how, this is COOL!!