November 2010 - Biology (E/M)

<p>@nrytia: It’s splicing I guess. It’s about RNA cutting their introns.</p>

<p>@nritya I didn’t put transformation for any of them</p>

<p>for the pterodactyl one i put you couldnt determine it without more info cause both parents could have been heterozygous OR homozygous, which would have made a difference in the likelihood of the kids’ genotypes</p>

<p>@goldylocks and goldnano… do you remember the questions in that part?</p>

<p>@biology Oh, didn’t the problem say recessive though?</p>

<p>^^same.<br>
ten char</p>

<p>yeah, for the polydactyl question i put the same answer as nritya</p>

<p>If it’s recessive, and they both have the condition that means that they only have recessive alleles to contribute…</p>

<p>it deff. didn’t say recessive… it said it was a dominant trait.</p>

<p>i totally read that problem like 5 times to check if it said so</p>

<p>Its annoying trying to remember the questions and forgetting what you picked :D</p>

<p>Ah, okay. I keep mixing the questions up, lol.</p>

<p>i hate that polydactyl question…</p>

<p>The Albino thing?</p>

<p>I remember it this way:</p>

<p>The mom was an albino, dad was normal. Albino is a recessive trait:</p>

<p>mum had aa dad has Aa because first son was normal but second son was albino.
last question was what are the chances of a 3rd albino child, answer was 50%</p>

<p>polydactyl was easy, and its dominant im 100% sure</p>

<p>did u guys put both heterozygous for the one where the ratio was like 9:3:3:1. it wasn’t exact, but it basically was</p>

<p>boramk-
i put
dad=Aa
child=Aa
50 percent</p>

<p>how about the albino question?
i put:
older child: Aa
father: Aa
the third child: 50% cuz the mother is aa and father is Aa</p>

<p>Which one did you guys put for the question about the circulatory system and it asked something about a dog? I put the section that had C02 and 02 exchange…</p>

<p>***? Albinism is a recessive trait though?</p>

<p>structure 5 i put that was analagous to dogs, what about structure that had most oxygen was it 6? 6 is the far right part</p>

<p>@ biologygenius</p>

<p>You got the exact same as me</p>

<p>@ JBieber</p>

<p>6 had the least CO2 or most O2 or something like that</p>

<p>which structure was 5? i don’t remember what i put.<br>
but i did put 6 for the most oxygen</p>