<p>Was choice b “the parent will always produce offspring with the same phenotype as itself”? That’s what I put.</p>
<p>this was a tricky test, agreed?</p>
<p>There was a I, II, III question about rod fish and another type of fish…maybe L-fish? it was asking what showed that the rod fish were more closely related to something else. anyone remember the answer?</p>
<p>@ Charlie Brown, yes</p>
<p>I think your fish question is a Biology E specific</p>
<p>Charlie was that E or M or Core?
zing what do you think the curve will look like? it seems liek you did really good</p>
<p>i think i put I and II</p>
<p>I’m not sure which part it was from. Either Core or E.</p>
<p>it was from E</p>
<p>what did you guys say for the darwin question
i chose the answer with “slight variations can affect…(sumthing)”</p>
<p>yeah that was it</p>
<p>for the M section, the last set of questions was about a lab done to find differences from human1. what was the answer for which gene would best be used to classify another organism as an animal plant or bacteria?<br>
i said the HOX1 gene?</p>
<p>Me and Zingzong said rRNA^^^</p>
<p>oh man i lost track but im down to like -6/-7/-8. what is that on an 800 scale? how about u guys?
how come the barrons book has a totally diff curve from the other books?</p>
<p>because those are a lot more difficult than other books i believe</p>
<p>I said HOX1 gene too, but I wasn’t too sure, since we wouldn’t be able to differentiate between plant and bacteria, but I found it preferable to all the others, since none of them was a concrete division between the animal/plant/bacteria. At the very least, the HOX1 would tell you whether or not it’s an animal. The sample size just wasn’t big enough for me to warrant putting a barrier on the number of gene differences that would delineate the characteristics of the species; that just seemed arbitrary to me.</p>
<p>Oh, and I found this test to be harder than Barron’s. This felt like more of an application of knowledge, while Barron’s is more regurgitation.</p>
<p>@tink: so who do we trust lol?
@smash: isnt it rRNA cuz all the animals had 0 , corn has 6 and bacteria had 18? do you think it will be a nice curve?</p>
<p>It very well could be, and I could be looking too intently into the problem’s structure, but just because corn is 6, doesn’t mean that peas can’t be 15. Also, what if the number of differences was 12? What would you do, then? I’m most likely wrong, but I just didn’t like that problem.
Plus, hadn’t we established a couple questions ago that rRNA had the “LEAST EVOLUTIONARY VARIATION” (caps straight from the test itself) between the organisms? Maybe that was a dumb reason to rule it out, and it doesn’t actually exclude it from being valid, but I was narrowed down between rRNA and HOX1, and I used the aforementioned reasoning to get my answer.</p>
<p>probably the princeton or the collegeboard book
those are a lot more realistic</p>
<p>@smash: i agree it was a weird prob. im not sure myself
@tink: what do those book say -6/-7/-8 is? i dun have those books :/</p>
<p>around 750-730</p>
<p>did we ever come to a consensus about the bile thing? was it motor neurons? i put sensory neurons from the gallbladder, but if someone could provide a good explanation behind their answer, it would be much appreciated.</p>
<p>for the M section, the graph comparing human #1 genes to the same loci for other species, what did the numbers for rRNA look like across the chart? i remember definitely having it down for one of the first answers in that lab.</p>