<p>can somone explain about the disease in pedigree charts??</p>
<p>when the disease is present in every generation it’s dominant?
and when it exists only in males or only in females it’s sex-linked?</p>
<p>how would autosomal look like?</p>
<p>SOS!!!</p>
<p>autosomal is if the daughter has the disease but the father does not have the disease</p>
<p>Yea believe it or not the SAT has a ridiculous amount of graph questions which are really dumb imo. That’s like degrading to the ACT…but yea. Read them carefully. I took the official practice test and got a 790 because I got 5 graph questions wrong because I read the opposite of what it said d’oh! Problem is I rush too much, so I have like 30 minutes left and then I get impatient and check answers lol</p>
<p>And thanks Shizzle, just based on this thread I’m sure you’ll do fantastic as well.</p>
<p>And tazatealover, although I can’t answer your specific questions since they are worded in a slightly pecular manner, I’ll just say this. Pedigree questions should be generally easy. Should they ask you identify the type of inheritance, you can easily disnguish dominant and recessive. Basically, if a diseased offspring results from two undiseased parents then it must recessive. Otherwise it is dominant. As for autosomal vs. sex-linked. If the father is infected and the mother is fine then the son can’t possibly have the disease. If he does you know it must be autosomal. Using similar deductions you can ascertain the rest. Hope that helped! :)</p>
<p>when you say lots of graph qs. do you mean m or e?</p>
<p>^Both have their own type on M you might see more enzyme related questions whereas in E you might see more predator-prey interaction graphs. The ETS will mange to put a bunch of these silly types of questions regardless of the M or E.</p>
<p>can you explain enzyme graphs to me?</p>