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March 29, 2024, 01:54:00 am

Author Topic: VCE Biology Question Thread  (Read 3570617 times)  Share 

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Rishi97

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Re: VCE Biology Question Thread
« Reply #2250 on: July 16, 2014, 08:20:09 pm »
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Does DNA replication occur in mitosis?

no it occurs in interphase which is not part of mitosis or meiosis
2014: VCE completed
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Cham

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Re: VCE Biology Question Thread
« Reply #2251 on: July 16, 2014, 08:26:24 pm »
+1
no it occurs in interphase which is not part of mitosis or meiosis

Thank you :)

grannysmith

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Re: VCE Biology Question Thread
« Reply #2252 on: July 16, 2014, 10:39:22 pm »
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Is this an accurate description of independent assortment?
During anaphase one, the separation of alleles in an allelic pair (chromosomes in a homologous pair) into the daughter cells is independent of the separation of other allelic pairs (homologous pairs).

RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2253 on: July 16, 2014, 11:17:48 pm »
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For experimental design questions would planning my response to include all these points:

•   Hypothesis
•   Tools/Materials
•   Experimental procedure/ method (talk about the control group, constant variables, independent/experimental variable and dependent variable)
•   Limitations: Such as extraneous errors and how these will be managed.
•   Improvements (For future)
•   Description of results which would either support or negate your hypothesis.

Be sufficient?

Do you have to talk about limitations and improvements in an experimental design question?

Also do you need to specifically state the control group, constant variables, independent variable, dependent variable etc. ?

RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2254 on: July 16, 2014, 11:19:20 pm »
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When writing a hypothesis in biology, should you state your prediction of the results and then also explain why? Or is that not necessary?

Reus

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Re: VCE Biology Question Thread
« Reply #2255 on: July 17, 2014, 09:46:18 am »
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Do you have to talk about limitations and improvements in an experimental design question?

Also do you need to specifically state the control group, constant variables, independent variable, dependent variable etc. ?
Even if not specifically asked to on like consequential questions, I think you still should. But thats just me playing safe :P

When writing a hypothesis in biology, should you state your prediction of the results and then also explain why? Or is that not necessary?
Just follow this template...
It is hypothesised that if the coleoptile region of a plant is exposed to blah blah blah then plant growth will eventuate.

So in a sense, yes you do state why the results you have predicted are going to happen
2015: Bachelor of Science & Bachelor of Global Studies @ Monash University

dankfrank420

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Re: VCE Biology Question Thread
« Reply #2256 on: July 18, 2014, 09:59:52 pm »
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Metaphase ( I think ) because that's when they align.

Crossing over occurs in prophase I of Meiosis.

dankfrank420

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Re: VCE Biology Question Thread
« Reply #2257 on: July 18, 2014, 10:07:03 pm »
+1
When writing a hypothesis in biology, should you state your prediction of the results and then also explain why? Or is that not necessary?

My teacher told me to include a brief explanation as well. For example, an experiment involving the impact of the colours of light on the rate of photosynthesis:

The plants exposed to green light will produce the least amount of oxygen because chlorophyll reflects green light. 

nerdmmb

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Re: VCE Biology Question Thread
« Reply #2258 on: July 19, 2014, 05:29:18 pm »
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Can someone please check my answer to the following question?

Q. Describe two factors that would determine whether or not a particular protein is produced in a cell.

A. Two factors include whether or not the protein is required and whether the organism contains genes that code for that particular protein.

Thank-you!

davomac

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Re: VCE Biology Question Thread
« Reply #2259 on: July 19, 2014, 05:41:03 pm »
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Role of the promotor region of a gene???
Cheers,  :)

nerdmmb

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Re: VCE Biology Question Thread
« Reply #2260 on: July 19, 2014, 05:47:09 pm »
+1
Role of the promotor region of a gene???
Cheers,  :)

Region that initiates transcription of an mRNA molecule.

This occurs due to a variety of reasons including the attachment of a hormone-receptor complex that attaches to the promotor region of a gene.
« Last Edit: July 19, 2014, 06:49:19 pm by nerdmmb »

davomac

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Re: VCE Biology Question Thread
« Reply #2261 on: July 19, 2014, 06:07:46 pm »
+1
Great! Thanks.
Also what would be 2 roles (functions) of the enzyme 'RNA polymerase'??

Reus

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Re: VCE Biology Question Thread
« Reply #2262 on: July 19, 2014, 06:34:54 pm »
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Great! Thanks.
Also what would be 2 roles (functions) of the enzyme 'RNA polymerase'??
RNA polymerase is an enzyme that binds to a specific section where an mRNA will be synthesised. Then a DNA strand unwinds, the RNA polymerase initiates mRNA and moves along one of the DNA strands in the 3' to 5' direction. Resulting in a mRNA molecule.

So basically it functions in synthesising mRNA.
2015: Bachelor of Science & Bachelor of Global Studies @ Monash University

nerdmmb

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Re: VCE Biology Question Thread
« Reply #2263 on: July 19, 2014, 06:48:13 pm »
+1
RNA polymerase is an enzyme that binds to a specific section where an mRNA will be synthesised. Then a DNA strand unwinds, the RNA polymerase initiates mRNA and moves along one of the DNA strands in the 3' to 5' direction. Resulting in a mRNA molecule.

So basically it functions in synthesising mRNA.


Isn't it in the 5' to 3' direction?

davomac

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Re: VCE Biology Question Thread
« Reply #2264 on: July 19, 2014, 07:15:07 pm »
+3

Isn't it in the 5' to 3' direction?

DNA polymerase adds nucleotides in a 5' to 3' direction, during DNA replication. but RNA polymerase moves along the DNA template strand in a 3' to 5' direction, during the transcription process.