BIO- official post discussion

Archive SAT Subject Test Preparation
61

<p>That had to have been in E…archaebacteria live in places like hot springs, etc, and they definitely aren’t eukaryotic but they are (awkwardly) closer to eukaryotes than eubacteria.</p>

62

<p>Anyone else take the Ecology section? I thought it was harder than usual - kept changing my answers.</p>

<p><edit: by=“” usual=“” i=“” mean=“” the=“” practice=“” tests=“”></edit:></p>

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<p>I’m glad I went with M, because I felt really good about most of the questions that I answered, moreso than the E questions I peeked at.</p>

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<p>wait - how are archaebacteria closer to eukaryotes than to eubacteria???</p>

<p>bacteria don’t have nucei, and archaebacteria and eubacteria are of the same kingdom - moneran.</p>

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<p>We’re talking about the 3 domain system of classification here. Wikipedia says this: Archaea are similar to other prokaryotes in most aspects of cell structure and metabolism. However, their genetic transcription and translation — the two central processes in molecular biology — do not show the typical bacterial features, but are extremely similar to those of eukaryotes.</p>

<p><a href=“http://en.wikipedia.org/wiki/Archaebacteria[/url]”>http://en.wikipedia.org/wiki/Archaebacteria&lt;/a&gt;&lt;/p&gt;

66

<p>oh crap. now that’s two wrong.</p>

<p>was it just me or were the genetics problems weirdly easy? Pfft, knowing me, I prolly made stupid errors on them.</p>

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<p>Yes, they were definitely talking about EARLY hominids, like Austrolaphietiachiernces or whatever it’s called.</p>

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<p>Yeah, the genetic questions weren’t too bad, I’m just paranoid that I made some dumb mistake that messed the whole thing up. I’m thankful there weren’t any pedigrees though although the numerous charts made up for the lack of pedigrees, time-suckage wise, haha</p>

69

<p>Did anyone get 1/2 or 50% for a lot of those genetics problems?</p>

70

<p>One genetics problem tried to trick you by asking about white wool after getting you to think about black wool. Another asked about homozygous, which many people would have assumed meant homozygous dominant but it can include homozygous recessive as well.</p>

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<p>how is the bio score curve? is it usually strict?</p>

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<p>I got 1/2 for at least one of them</p>

73

<p>what was the category split between dorsal hollow nerve cord and ventral???</p>

74

<p>Chordates and, um… Annelids, I think?</p>

<p>TruthSmoker, what was the homozygous question?</p>

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<p>yeah, I’ve heard the curve is usually pretty strict. Kaplan says you need a raw score of 77/80 for the 800</p>

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<p>I think it’s actually a little more lenient than that. I think you can miss maybe 5 for the 800.</p>

77

<p>wasn’t the wool thing 3/4?
and also the one about color blind man and the woman wif the color blind father… was the answer 1/4?</p>

78

<p>what was the question about the main reaction that takes place in photosynthesis or light reactions (i don’t remember which it was)
was it H20 –> O2?</p>

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<p>

</p>

<p>I think it was the pea one. The answer was 50 %.</p>

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<p>PR says you need a 78</p>

<p>yeah, what was the homozygous one?</p>