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March 28, 2024, 09:15:38 pm

Author Topic: VCE Biology Question Thread  (Read 3570388 times)  Share 

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RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2625 on: August 19, 2014, 08:39:01 pm »
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Does the term 'gene cloning' always refer to genes being cloned within vector organisms?

Or could it also refer to genes being cloned via PCR and other mechanisms not involving living organisms as well?

grannysmith

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Re: VCE Biology Question Thread
« Reply #2626 on: August 19, 2014, 08:51:15 pm »
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Do we need to know about RFLP?

Sense

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Re: VCE Biology Question Thread
« Reply #2627 on: August 19, 2014, 09:11:53 pm »
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When referring to the results of gel electrophoresis, what does this question mean?

'Are there any two banding patterns that are exactly alike? How would you explain this?'
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grannysmith

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Re: VCE Biology Question Thread
« Reply #2628 on: August 19, 2014, 09:35:56 pm »
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When referring to the results of gel electrophoresis, what does this question mean?

'Are there any two banding patterns that are exactly alike? How would you explain this?'

Two banding patterns that are exactly alike would have travelled the same distance within a given time period. This is because they are of the same length, and therefore their rate of travel would be identical.

Sense

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Re: VCE Biology Question Thread
« Reply #2629 on: August 19, 2014, 09:38:44 pm »
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Two banding patterns that are exactly alike would have travelled the same distance within a given time period. This is because they are of the same length, and therefore their rate of travel would be identical.

Thanks, so it's just another way of saying the gel electrophoresis showed 2 matching DNA samples ?
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grannysmith

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Re: VCE Biology Question Thread
« Reply #2630 on: August 19, 2014, 09:45:10 pm »
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Thanks, so it's just another way of saying the gel electrophoresis showed 2 matching DNA samples ?

Essentially, yes :)

Jason12

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Re: VCE Biology Question Thread
« Reply #2631 on: August 19, 2014, 10:26:47 pm »
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what exactly are introns and exons and which one exits and which one stays?
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vox nihili

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Re: VCE Biology Question Thread
« Reply #2632 on: August 19, 2014, 10:31:42 pm »
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what exactly are introns and exons and which one exits and which one stays?

Introns are in the way, whereas exons are expressed
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Reus

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Re: VCE Biology Question Thread
« Reply #2633 on: August 19, 2014, 10:59:03 pm »
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Could someone please give me a brief description on how and why the divergence of two species occurs?
Like when on the cladogram, species A becomes B and C.
I said because of selection pressures, but I feel like it's not completely answering the question haha.

Thanks!!
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RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2634 on: August 19, 2014, 11:30:32 pm »
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Do we have to know in detail what is involved in DNA sequencing?
Or just what it is?

grannysmith

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Re: VCE Biology Question Thread
« Reply #2635 on: August 20, 2014, 05:37:09 pm »
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Can a vector be defined as any self-replicating DNA molecule used to transmit DNA?

RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2636 on: August 20, 2014, 05:43:18 pm »
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I was doing the 2009 VCAA exam and the question asked: "What term describes the process of copying a gene?"

The assessment report said that: "
Gene replication and DNA replication were also accepted. PCR and transcription were incorrect answers and replication was deemed too vague."

Why would be PCR be incorrect? Technically you could use it to copy a gene, couldn't you?

RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2637 on: August 20, 2014, 06:10:02 pm »
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Could I define transformation as: The process in which an organism takes up foreign DNA, and expresses it.

RazzMeTazz

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Re: VCE Biology Question Thread
« Reply #2638 on: August 20, 2014, 06:14:43 pm »
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Do we need to know about microarray technology?

nerdmmb

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Re: VCE Biology Question Thread
« Reply #2639 on: August 20, 2014, 08:53:36 pm »
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Do we need to know about microarray technology?

Apparently we do :)