January 2011 - Biology (E/M)

Test Preparation SAT Subject Test Preparation
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<p>lacamotif@“Independent assortment is a basic principle of genetics developed by a monk named Gregor Mendel in the 1860’s. Mendel formulated this principle after discovering another principle now known as Mendel’s law of segregation. This principle states that the alleles for a trait separate when gametes are formed. These allele pairs are then randomly united at fertilization. Mendel arrived at this conclusion by performing monohybrid crosses. These were cross-pollination experiments with pea plants that differed in one trait, for example pod color.”
[Independent</a> Assortment](<a href=“http://biology.about.com/od/mendeliangenetics/ss/independent-assortment.htm]Independent”>Introduction to Mendel's Law of Independent Assortment)</p>

<p>it was all three.</p>

102

<p>Yea I wrote Respiration but I found it hilarious how they wrote The Calvin cycle with dark in parenthesis… lol</p>

103

<p>Good luck everyone! Hoping for nice curve :D</p>

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<p>@sciencesponge - i know about the independent assortment… but that’s still alleles etc - not characteristics</p>

105

<p>can we all pray for a big curve</p>

106

<p>for Mendel’s laws, it was all three.
and i said respiration because both the light reactions and the dark reactions need light to occur.
and the 6th arm was human. what did everyone put for swimming? i wanted to put 5, the one that looked like it was webbed, but it wasnt a choice…so i said 1?</p>

107

<p>for m w. the radioactive eggs: did you put abrupt change or slow change in time period 2?</p>

<p>also what was the answer to the heaviest element question??</p>

108

<p>I put carbon for the elemental compound question because I just knew that organic matter is made of carbon (except carbon dioxide) so I guessed</p>

<p>swimming i put 1 cause it looked like a penguin flipper</p>

109

<p>I dont think the fattest curve will help me haha… but thank god I took Ecology that has a higher curve… and it was so much easier… :]</p>

110

<p>for the radioactive embryos i put change (without the abrupt because the change didnt occur in the beginning)
and for the element question i put carbon because it makes up organic matter</p>

111

<p>for the bird one, i said that introducing another bird species as competition would control the population.</p>

112

<p>I was gonna put that but brining in a new species would either result in them changing niches, otherwise one would probably go endangered or extinct but Idk thats just my opinion lol</p>

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<p>for the abrupt change / just a change… i said abrupt because it happened @ one point.</p>

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<p>although now i’m really unsure!!</p>

115

<p>new exotic species might pose the same problem as the starlings themselves!</p>

116

<p>It think the abrupt change answer was something along the lines of "abrupt change at the beginning of time 2.</p>

117

<p>but bringing in a new species wont necessarily provide competition. the way they worded it, it just sounded like bringing in any random species of “exotic bird”</p>

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<p>and yes it was abrupt change at the BEGINNING, but the graph seemed to show that it was in the middle of time period 2</p>

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<p>I thought that injecting the communicable virus would have wiped out the entire population which would make it extinct. The question was asking how to control, not kill, the population. That’s my view on why I didn’t put the injection answer.</p>

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<p>It think the answer choice specifically had competition. BTW, I agree with you (ccccconnie11), I was just replying to lacamotif.</p>