**OFFICIAL SAT Biology E/M June 2013 Exam**

<p>the Ced Elegans one in the M section was that cells that would not normally die, would die, beacuse the gene usually inactivates them, so not having the Ced Elegans gene would cause them to be active, and cause cells to die</p>

<p>-2 for me so far! :D</p>

<p>There was question about an sex-linked chromosome that determines color (red or white) and the question asked which of the following is true. Anyone remember the question? what’d you get?</p>

<p>Also darwin said nothing about recessive alleles right?</p>

<p>reptiles, bird, fish, etc. order is FARBM Fish, Amphibians, Reptiles, Birds, Mammal</p>

<p>Yes but was it reptiles or insects that came first?</p>

<p>still only -1 !!! :)</p>

<p>hmmm, not really sure medicalboy, was that on E, cause I took M</p>

<p>Yea it was the second question of E</p>

<p>it was the extinct populations mediboy</p>

<p>For the phosphorous question on M (I think) was it RNA or Hemoglobin?</p>

<p>@medicalboy
Insects came first :)</p>

<p>hey guys did you get these answers:</p>

<ul>
<li>Ants and the other thing share the same food (I put this instead of the predator thing because its hard to prove that one ate another)</li>
<li>Air is humidified</li>
<li>yellow male crossed with the brown female? </li>
<li><p>the first mitotic divisions occur between 6 and 24?</p></li>
<li><p>what did you guys get for the apoptosis problem?? (all cells have it and will die?)</p></li>
<li><p>is it 100% recessive for the white, blue, and lavender problem where a white one self pollinates?</p></li>
<li><p>what do plants, animals, and fungi have? hypha or mitochondria</p></li>
</ul>

<p>its RNA. it has a phosphate group</p>

<p>So guys did anyone else put epidermis as dead? Because I now realize that the xylem is made up of dead cells and I guess I was thinking of human skin epidermis cells. But I mean there was no suggestion that the epidermis mentioned had to be a plant epidermis right? xD I think I should just accept it as wrong.</p>

<p>Can someone elaborate on the mice question that had the answer of 6-24 hours? What exactly was it asking?</p>

<p>ants and tree huggers was the predator one</p>

<p>air is humidified</p>

<p>I put E, I forget what that was though</p>

<p>mitotic divisions between 6 and 24 hours.</p>

<p>apopotosis: cells that would not normall die, would die</p>

<p>I forget the problem, sorry.</p>

<p>plants, animals, and fungi have mitochondria. Only fungi have hypha</p>

<p>Satman </p>

<p>I think E was yellow female and brown male. Something like that</p>

<p>What type of microscope was best for studying a virus? I put electron scanning (D) but that was a total guess…</p>

<p>pretty sure it was light microscope. I omitted it but a light microscope is all that’s necesarry to see cell sized things. a virus is not on the molecular level. but not sure</p>