VCE Biology 2021 Exam Solutions

[Define Free]

This is what me and my friend got for the MC:

Spoiler

1.   B yes yes
2.   C yes  Yes
3.   A Yes Yes
4.   D Yes Yes
5.   D Yes Yes
6.   C Yes Yes
7. B     (Maybe D) I think it is either B or D
8.   C  Yes Yes
9.   A Yes YES
10.   D Yes Yes
11.   A (We reckon D)
12.   A  Yes Yes
13.   C  Yes Yes
14.   B Yes Yes
15.   B  Yes Yes
16.   C Yes Yes
17.   C Yes Yes
18.   A Yes Yes
19.   B Yes  Yes
20.   B Yes Yes
21.   D Yes Yes
22.   C Yes Yes
23.   A Yes Yes?
24.   D Yes Yes
25.   C Yes Yes
26.   D Yes Yes
27.   B Yes Yes
28.   A Yes Yes
29.   D Yes Yes
30.   D Yes Yes
31.   A Yes Yes
32.   A (We reckon C)
33.   B Yes Yes
34.   B Yes Yes
35.   D Yes Yes
36.   A Yes Yes
37.   B Yes Yes
38.   C Yes Yes
39.   B or D?  (We reckon A)
40.   A (We reckon D)

That's the exact same as what I got for the exam, I put B for Q7

[darkz]

For question 11 of the multiple choice why would it be A? I thought that the point of programmed cell death during embryonic development was to ensure appropriate formation of developing organs such as to avoid like webbed feet and stuff. I searched this up too "Programmed cell death plays an important role in the processes of gamete maturation as well as in embryo development, contributing to the appropriate formation of various organs and structures."

For question 40 of the multiple-choice, wouldn't it be D, not A? Since BA in low concentrations had a lower stem length.

Yep, I'd agree with both of you! Thanks for pointing it out

For question 6 b, can another possible answer be that a large group from the East Australian population recently separated from the original population(the East Australian one) and migrated to new Zealand, so both populations would have similar alleles in their gene pools?

Also for Question 10 b, can a possible answer be: The nucleotide sequences of the insulin gene extracted from human and a artificial insulin gene will be different, since the genetic code is redundant, and so the same amino acid can be coded for by the multiple different codons?

Yeh, both these seem reasonable

[mit0chondri4]

Would question 4 in mc be C and not D? because it says 'mRNA' and option D has thymine which is not in mRNA, whereas option C has uracil

[stickyends]

Would question 4 in mc be C and not D? because it says 'mRNA' and option D has thymine which is not in mRNA, whereas option C has uracil

That question was asking about the DNA probe, in which case thymine would be present, so D is correct for that question.

[biol]

Shouldn’t the answer for the drawings be younger than 65000 years since they could hv only been made once the minerals were deposited into the stalagmite

[biol]

Sorry—————Also wouldn’t glucose uptake be the same

[RaspberryTau]

Sorry—————Also wouldn’t glucose uptake be the same

I think the glucose uptake question may be one of those where if you justify what you said, you should be fine.... Although having said that, I could be completely wrong....

Shouldn’t the answer for the drawings be younger than 65000 years since they could hv only been made once the minerals were deposited into the stalagmite

"Over a long period of time, water, containing minerals, dripped from the cave roof, solidified and formed a transparent layer on top of the drawings on the stalagmites."
I'd say the paintings would be older than the transparent layer.