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March 29, 2024, 03:56:49 am

Author Topic: VCE Biology Question Thread  (Read 3570728 times)  Share 

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angrybiscuit

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Re: VCE Biology Question Thread
« Reply #13035 on: September 29, 2020, 05:14:37 pm »
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Do we need to remember the names and types of tools developed by humans over time (e.g. 'Mousterian' technology), or can we just have a general sense of how these tools have become more advanced over time?
No, cultural evolution is removed from the 2020 study design :)
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p0kem0n21

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Re: VCE Biology Question Thread
« Reply #13036 on: September 29, 2020, 06:10:10 pm »
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No, cultural evolution is removed from the 2020 study design :)


oh I'm doing bio 3/4 in 2021 lolololol

Owlbird83

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Re: VCE Biology Question Thread
« Reply #13037 on: September 29, 2020, 06:20:43 pm »
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oh I'm doing bio 3/4 in 2021 lolololol

You still definitely don't need to know types/names of tools. Just how they've gotten better over time, (and briefly know how tools tie to cultural evolution if they put it back on the SD)
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miyukiaura

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Re: VCE Biology Question Thread
« Reply #13038 on: September 30, 2020, 04:17:16 pm »
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Which trial exams have the best/hardest questions on human evolution that you've come across? Thanks :D
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Coolgalbornin03Lo

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Re: VCE Biology Question Thread
« Reply #13039 on: September 30, 2020, 05:25:52 pm »
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Hey
-Introns cannot be translated as they don't code for any information for amino acids (they are not complementary to any anticodons of amino acid carrying tRNA) thus are spliced out.
Good luck on Exam :)
What if some introns are retained through alternative splicing?

Also why is DNA more accurate for molecular homology other than the fact the genetic code is degenerate so change in DNA can occur without affecting Amino acid sequence?
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tiredandstressed

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Re: VCE Biology Question Thread
« Reply #13040 on: September 30, 2020, 05:58:31 pm »
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Which trial exams have the best/hardest questions on human evolution that you've come across? Thanks :D
NEAP is usually quite challenging (often beyond the course)
TSSM is also usually beyond the study design
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homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13041 on: September 30, 2020, 06:03:17 pm »
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What if some introns are retained through alternative splicing?
I'd suspect that a protein with a different tertiary structure gets translated and it would have a different function. I did some googling and apparently humans have a couple of proteins translated from mRNA containing introns, and those proteins have different functions from a protein that would be translated with all of the introns spliced out.

Also why is DNA more accurate for molecular homology other than the fact the genetic code is degenerate so change in DNA can occur without affecting Amino acid sequence?
Other than the fact that silent mutations cannot be detectable if you're looking at amino acid sequences many scientists actually prefer amino acid sequencing. This is because highly conserved proteins as a whole are less likely to mutate as they are crucial for survival and are therefore better to use to find remote evolutionary relationships.
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13042 on: September 30, 2020, 06:04:45 pm »
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If introns are retained a wrong protein will get produced during translation,

Retained intron sequences lead to the introduction of premature termination codons

homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13043 on: September 30, 2020, 07:18:45 pm »
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Hey! My teacher told me that when writing the chemical equation for cellular respiration you have to either put 36 or 38 ATP and you cannot put 36-38 ATP. Similarly, when putting the inputs and outputs of electron transport chain, do we put 32-34 ATP or one of them?

Thank you so much!
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13044 on: September 30, 2020, 07:21:42 pm »
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I think it’s 32 or 34 ATP you cant have 33

homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13045 on: September 30, 2020, 07:24:42 pm »
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Oh sweet thank you! So it's best to pick either 36 or 38 for the chemical equation, and 32 or 34 for the ETC? I tried searching for this question in the past VCAA exams and couldn't find it.
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13046 on: September 30, 2020, 07:27:22 pm »
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Yes that is right for the chemical equation you just write 36 or 38

homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13047 on: October 01, 2020, 10:26:55 am »
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Hey! Just to be sure isolation is separating ill people from those without a disease to prevent spread and quarantine is separating and containing healthy people who have been/ may have been exposed to the disease right?
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13048 on: October 01, 2020, 11:21:19 am »
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Yes thats right quarantine is when people have been somewhere and have been/may be infected with a disease and are therefore isolated from others.

Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13049 on: October 01, 2020, 12:17:55 pm »
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For this question why can't it be c