October 2011- Biology E/M

<p>Do anyone know if ATP is what makes myosin and actin contracts?</p>

<p>My cousin said it is ATP but I should probably verify that.</p>

<p>For the fruit fly one, I also put I and III.</p>

<p>For the myosin and actin question, the answer was ATP. Myosin actually needs to bind to ATP for the contraction to occur.</p>

<p>Wasn’t the fruit fly I and IV?</p>

<p>Maybe I’m confusing it with something</p>

<p>Well apparently the sponge and hydra one was II and IV and and the fruit fly one I think is I and III.</p>

<p>It may have been I and IV. I don’t remember.
But the answer was whichever choice had the options for 100% red-eyed for both genders and 50% white-eyed for both genders.</p>

<p>Yea, the cross was RR x rr or Rr x rr</p>

<p>Anyone remember this question?
Which of the following creates new alleles in the population?
-Sexual reproduction
-Mutation
-Natural selection
-Something else</p>

<p>What did you guys say?</p>

<p>^^Mutations.</p>

<p>Was the one with the finches becoming different over time from one finch adaptive radiation?</p>

<p>^^yes. It was due to adaptive radiation.</p>

<p>Anyone remember W U V or something in the neurone section?</p>

<p>Was the one with finches E specific?
@shirafune @kiwisarecool</p>

<p>thanks shirafune! and yeah i remember that one</p>

<p>I’m pretty sure it was</p>

<p>“Islands split, animals different = evolution differs for small populations”</p>

<p>Is that what you guys put too? I put that isolation is what caused the animals to become so different from the other place. I mean even though it said only 600 miles, I thought it was still pretty far apart and it is separated by water after all.</p>

<p>I put isolation, too :D</p>

<p>Ya, I got isolation too. :)</p>

<p>Wait why doesn’t natural selection cause new genes?</p>

<p>Natural selection don’t cause new genes. It just make some genes favorable. Like when the industrial age in England came, the soot gathered on the trees and the black moth blended in, while the white moths were easy prey. Instead of being 50% white and 50% black moth it was mostly 90% black moth and 10% white. That’s natural selection…</p>

<p>Mutation, changes in your dna, which is what caused different alleles.</p>