May 2013 Biology SAT 2 test

<p>Doesn’t the axel produce IAA (not root cells)? root cells grew whether the axel was present or not, it just took longer.</p>

<p>@insurrection
I agree with you. The axel should produce IAA.</p>

<p>Anyone remember the exact question and answer choices for the answer with the bacteria growth being a result of contamination from water? It was in Bio-M, in the last 5 questions.</p>

<p>also, does anyone know when the chromosomes (chromatids?) first began to go towards the poles? it was the first question on M.
I put it was after the centrosomes began to separate O.o</p>

<p>i think it was 800,000 for the growth of the colony of 80…and the only other one i remeber is that 5 attacks colony 1 or something like that. and @insurrection…wasnt it the lanlin or w.e. that caused growth bc one answer was like btw which two is growth shown or something…and it was the one that took 12 weeks and one that took 4 i think was btw. III and IV or something i cant remember.</p>

<p>@parallelism I don’t remember the question, but I did put that answer (contaminated water) if that helps. in that same series, there was also a question on “which would fare least well against the one that produced some toxin.” I put it was the small circular ones.</p>

<p>What was the tRNA strand…was it UUU and what was the DNA lol?</p>

<p>@insurrection: yeah the small ones was colony 1. and which was the contaminated water one…was the the last question? Bc i messed that one up bc i forgot there was a chart comparing the colors.</p>

<p>I got AAA and the stop codon for the DNA thing.
I also got that colony 1 fared least well against 5.
Regarding the separation of chromosomes I also said after the centromeres split.
I thought the axel experiment was difficult. I put that the axel produced IAA and that II and III were the controls. </p>

<p>Am I just a horrible bio student or was this test hard? So many random little things that tripped me up.</p>

<p>nah haha yeah AAA was the stop codon…well it said stop codon next to it in parenthesis lmao and yeah the axel IAA thing was the hardest part for me…wasted so much time on it just trying to figure out what it meant.</p>

<p>For the colonies part there was a question like which colony was toxic or produce antibiotic it was colony 5
Also another concerning the results of colony 6 it was that the water was contaminated
The quest with the 80 colonies was 80,000
The last one inthe experiment was that which colony couldn’t survive with colony 5 and that was colony 1
These answers are for granted :D</p>

<p>the main 60 questions had a ridiculous amount of ecology.</p>

<p>-was the one which had fertilizer recently applied on it the one with high levels of all 3 elements (N, K, Phosphorus)?
-was the most diverse one the one with the most species (NOT animals)?</p>

<p>Here’s how it went for me: I omitted like 16, I think. I know that’s a big number but I just couldn’t do most of those experiment questions, they were so hard for me. I freaking was so proud of myself for “knowing” that intestine question until I came home and read these posts and now I know I misread it and got it wrong. Ugh, ***. Whatever, though. My mom wanted me to take this test and it looks good but I don’t even really need it. This was like a warmup for AP Bio.</p>

<p>The one with the fertilizers was the front lawn which was IV
The other about diversity was the one containing many species and organisims which was the wooded area II</p>

<p>@interrogative, yea for both your questions, i chose the answer with high levels of all 3 elements, and the most diverse is most species and not most organisms</p>

<p>@yomnaayman same excpet for the colonies i got 800,000 how did you get 80,000? (I had that first and then changed it last second). </p>

<p>@interrogative the one with the garder fertilizer was the lawn. and the one with the most species diverstity was the one with the most species not animals lol yeah. i think it had 8 speicies or something,</p>

<p>Does anyone remember the answer for the question about a homozygous recessive male reproducing with a normal female and having three unaffected sons? My answer was that the trait was X-linked…</p>

<p>I thought it was 800,000. For the fertilizer question I just looked that which had the highest about of fungi and bacteria idk I probably got that so wrong. For the most diverse wasn’t there one with 8 species? I said that one. </p>

<p>What did you guys say for the parasite and evolution question? Also the one with the mother with a dad with color blindness and a husband who was normal, they asked what were their chances of having a boy who was color blind. Did anyone say 1/4??</p>

<p>ASDFL;JDSA;LFJSAD;LFJDSA;LF KJ i just realized i missed the heterotrophic chloroplast question thing. </p>

<p>Was that just “protists?”</p>

<p>*UUGHHHH I PUT PROTISTS AND PLANTAE</p>

<p>or did i remember the question wrong? i’m kind of doubting myself now.</p>

<p>edit: jk that doesn’t make any sense. what heterotrophic organism would have chloroplasts? and also, i remember being very sure that animals were not an answer, and animals are very obviously heterotrophs.</p>

<p>At the head of the quest he wrote that the sample was 1ml and he diluted into 1L so 1000 times so if there were 80 colonies when it was 1L there will be 80,000 when it changes to be 1ml</p>