<p>I feel as though there are multiple correct answers on this exam. For the cell types, I said respiration cause of cilia and mitochondria and I said a producer of proteins which secretes throughout cell. For the chi square, I don’t know why people are guessing at all these values. I simply said the null was that the flies at 10 minutes will remain distributed similarly to what they were when they were observed at 1 minute. What would make that wrong? Of course, I rejected the null. Like I said, I think there are multiple answers.</p>
<p>I did 60, 0, 0 and got 3.75 and accepted too! THANK GOD some of you guys did that because everyone in my class did random things. And I got 1131 and .11 too! Yay</p>
<p>let’s do a tinychat so it’s easier to talk!
[apbio</a> - Tinychat](<a href=“Live video chat rooms, simple and easy. - Tinychat”>Live video chat rooms, simple and easy. - Tinychat) <<<here</p>
<p>For chi square I think there could be multiple answers. It is based on YOUR null hypothesis</p>
<p>TThe few of us on CC actually care about the exam. What about the thousands of they students that didnt? So I think the curve should be in our favor (:</p>
<p>I was actually surprised at how easy that was. So little of it was actual content. Most of it was graphs, charts, and diagrams. It felt more like ACT Science that it did AP Bio. I know of only one mistake that I made, and it was in regards to rounding, as I went to the thousandths, instead of the hundredths. As a note for all of those potentially questioning their grided response answers, the college board accepts answers around that. Like I remember on a practice, it was 1.2-1.4, and depended on how you rounded. I got 1132 on one, which is one higher, but would still probably be accepted, because it is so close. Anyway, really easy exam.</p>
<p>Tiny chat doesn’t work on iPhone 5 so I can’t join :(</p>
<p>Hey im in grade 10 and i think i failed the ap bio exam…if i take it next year and do good will this year’s score count?</p>
<p>I got point mutation then nonsense mutation (stop codon) because it stopped prematurely…Anyone else did that?</p>
<p>Exactly. The null could be any number of things. There was no single correct answer. Also, depending on how we round couldn’t it be 1132? You obviously can’t have a decimal in the population, but because it was higher than 1131, couldn’t one be right by rounding to 1132?</p>
<p>I did 1132. If I remember right, I just divided the first set by each other, and then used that decimal, and divided the second set by it. That explanation is probably awful. I feel confident that 1132 will be accepted.</p>
<p>was there a grid in where you just had to square the p or q allele?</p>
<p>also, the grid in with WwXxYYQq… or something like that… was that 0.75* 0.75<em>0.75</em>0.75?</p>
<p>aand… last 2 frqs
7. ethyl alcohol and urine?
8. signal transduction pathway 3 steps and gene expression</p>
<p>how did you guys do those two?</p>
<p>My null hypothesis was that the ratio of flies would remain constant after 1 minute.</p>
<p>I really thought that this test was a joke. I spent my whole weekend studying for it and it really wasn’t content based. I’m pretty sure someone who didn’t spend hours studying for it could have easily gotten a good score on it because a majority was just analyzing graphs! I really want to see how the score distributions turn out.</p>
<p>I spent so much time reading through the graphs and information that i didn’t even get to the grid ins</p>
<p>Why would they even put “Don’t Stop”? ****ing ridiculous. 6 points missed.):</p>
<p>Was the first grid in 100 percent?? Lol and I got a chi squared value of 11.1 for the first frq. The value is based off of your predictions right? I predicted 50,5, 5</p>
<p>for the chi square thing i put 20/20/20 because if there is nothing affecting the randomn movement of flies then there should be 20/20/20 in each area. but because there is something thats affecting other than chance there is an uneven distribution. the number received from the whole chi square process is much higher than the freedom allowed which makes sense because there was something other than chance influencing the experiment.
Thats what i put down. hope thats right :)</p>
<p>■■■ !there were 8 frq in total!!! I didn’t do the last too!!! You must be kidding me right!!!</p>
<p>Hahaha wow! ^^</p>