<p>I said was 40 because the population doubles in 40 hours.</p>
<p>At the beginning the population is 300,000 after 40 hours the population is 600,000. One cell cycle measures the time a cell divides into 2 cells. Therefore it is after 40 hours, when the cell count has doubled, when the first cell cycle is completed.</p>
<p>it was the graph without the “no nutrients” data graphed, the answer was A, it was a bar graph that had nitrogen only, phosphorus only, and nitro + phos, but it didnt contain the control group “no nutrients added”, unlike all the other graphs</p>
<p>This is your message
I dissagree i but B it was a line graph. The Nitrogen, Phosphorus and Nit+Ph were not suppost to be connected, because whats in between nitrogen and phosphorus dot?</p>
<p>So everyone’s split between which one’s wrong:</p>
<ol>
<li><p>Circle Graph</p></li>
<li><p>Line connecting dots</p></li>
<li><p>The graph with “no nutrients” category</p></li>
</ol>
<p>Just to sum it up.</p>
<p>What were the choices for the oxidative reduction?</p>
<p>Another question: what about the pedigree with the color blindness? Autosomal…sex-linked…what did you guys get for that one?</p>
<p>:)</p>
<p>The graph question was interesting.</p>
<p>I picked the circle graph because what was the independent variable? The dependent variable being measured? Not shown. :)</p>
<p>I picked sex-linked.</p>
<p>I think two guys had it while one girl had it. Colorblindness is sex-linked though, albeit the question was a “read the chart” question.</p>
<p>Yeah, I’m getting increasingly confident that it’s the pie graph. Does anyone have any way to support A besides that theres no control, which was basically refuted? I think B could be right also, now. But I dont know.</p>
<p>Colorblindness is sexlinked recessive</p>
<p>Eventhough I missed it, the circle one makes the most sense to me so far, also. Because in addition to your reasoning, the percent of growth doesn’t add-up to 100%.</p>
<p>Yeah, it would be really sneaky of them to make colorblindness seem autosomal in the pedigree, when many people know it’s sex linked.</p>
<p>sorry for double post, but if the color blindness is sex recessive, then the question about the male that was later born throughout the pedigree, there was some kind of question about him…</p>
<p>was something like “males do not get color vision genes from their father” an answer?</p>
<p>male XY
female XX
///x x
x xx xx
y xy xy
all males got X from the mother
If sex linked - on the X chromosome
all males can inherit only from mothers sex linked alleals</p>
<p>now people, according to hardness who can predict the curve, or at least post past curves for the bio</p>
<p>i think M is gonna get a really bad curve 
cause it was quite easy, especially compared to past M tests</p>
<p>In my Real SAT Subject Tests book, you can lose 6 raw points and get an 800.</p>
<p>Which is interesting for me, cause I know I’ve gotten 5 wrong, there are two others which have been discussed here, the graph and the cheated farmer questions, which I still think I got right but where I disagree with the general consensus, though I think the graph question consensus is shifting towards the pie :).</p>
<p>EDIT: Really? Eek!</p>
<p>what’s a testcross? the one with the A_?</p>
<p>A_ x aa was the test cross one I believe.</p>
<p>you all need to chill out
edit: .sorry… i’m just getting tired of seeing all the SAT threads at the top of the New Posts sectoin. gahdglkds.</p>
<p>That’s weird, on the may biology test the answer was Aa X aa</p>