June 2010: Biology

<p>anyone have the compiled answers so far that they could kindly post in the thread please? :)</p>

<p>What was the question for the decomposers answer? How generous do you think the curve will be I took Biology E. Also, was the answer for the one with the rabbits E, which said something about having too many empty niches?</p>

<p>@Tribalz: That was what I thought too, because for a diploid cell it would need only 2 recessive alleles for the trait to be expressed but in a polyploid, it would need 4 or something.</p>

<p>Ahhh I want my score already :P</p>

<p>For everyone that did M,
Do you remember the question about the virus or something and what it has to do?
Did you all say DNA->RNA?</p>

<p>Compilation would be nice…</p>

<p>bio was ridiculously weird… i studied SO HARD and i still couldn’t answer most because i hadn’t come across the information!</p>

<p>

It should be from RNA to new RNA. There’s no DNA in the virus.</p>

<p>Well the virus needs to replicate its own genetic information, right? So wouldn’t it need machinery to turn DNA into RNA since the plant has DNA as its genetic material? It needs to turn the plant’s DNA into its own RNA.</p>

<p>^The virus needs the enzymes of the plant to replicate so it must have an enzyme that turn its own RNA into the new RNA that can be recognized by the plant’s enzyme. </p>

<p>Your explanation sounds like the virus is assisting the plant to replicate but virus obviously doesn’t want to help.</p>

<p>I am not entirely sure about this question but I feel RNA to new RNA is the most valid answer.</p>

<p>The answer is in fact DNA -> RNA.</p>

<p>@happysunshine</p>

<p>theres no DNA in the virus, which is why it needs to turn DNA (from the cell) into RNA, using that enzyme.</p>

<p>^no in your case it would be RNA—> DNA or reverse transcriptase, which is not a a choice</p>

<p>^^The cell itself does have an enzyme to turn DNA into RNA; otherwise it can’t manufacture protein at all.
Maxyboy, what’s your answer?</p>

<p>^RNA—>RNA is what i put</p>

<p>anyone have a compilation?? im desperate people</p>

<p>^^^ But the virus isn’t turning the Host’s DNA into RNA, it is only using the host’s DNA to produce more virus RNA through reverse transcription, or could be using the enzyme to reproduce its RNA somehow (someone provided a link to this process previously but i forgot where).</p>

<p>Also going back to the hormone question, I remember the question asking the target organ of FSH and LH, which is the ovaries I believe, not the uterus. I cant remember the next question, but I think the answer was estrogen, which would target the uterus. Can anybody confirm or dispute this? Cause right now I’m at about -6 and want to know if I got this one right.</p>

<p>it is RNA to RNA due to [RNA-dependent</a> RNA polymerase - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/RNA-dependent_RNA_polymerase]RNA-dependent”>RNA-dependent RNA polymerase - Wikipedia)</p>

<p>^^I believe there are two questions regarding the hormones that you mentioned but the questions are not next to each other. I second your answers.</p>

<p>@jsnoopy I put the ovaries as the one that is targeted by FS and LSH and uterus for another question I can’t remember. </p>

<p>Does anyone have the answer to the “what statement would best refute the rabbit scheme?”
I put that there would be too many empty niches</p>

<p>to summarize the link I posted above, it is a special type of enzyme RNA polymerase that synthesizes RNA from an RNA template, an example is Poliovirus. Therefore RNA to RNA would make sense.</p>