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Stimulating questions

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Stimulating questions

Postby Adz795 » Thu Jan 12, 2012 9:43 am

I am posting some good biology questions. I want to discuss the answers with everyone here. I have marked my answers for only some of them though. Post your answers too.

CELL BIOLOGY:

If my answers contradict yours, feel free to post.
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Now, I am not so sure about this one.
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I need an explanation for this question. Any help would be appreciated.
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GENETICS & EVO:

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Now in 26) I say answer should be b. because the questions asks for variation AMONG INDIVIDUAL monkeys.


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ECOLOGY:


I need help with this one. I have my guesses but I am not sure.
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ANIMAL PHYSIOLOGY:


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I think it has to be insectivore (like a bird). The non-glandular region could be the crop and the glandular could be the stomach. Your opinions are welcome.


I find this tricky. Help please.
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THANKS a lot!
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Postby JackBean » Mon Jan 16, 2012 8:24 am

48.
a seems false to me
d not given
10. agree
1. of course the concentrations have different values :roll: anyway, the speed of mol2 is much higher for higher concentration, thus I think it is smaller, because then there is more molecules and the speed should be faster. It could also suggest higher GC content, since C-G pairs bind stronger. On the other hand, repetitions will probably slow down the binding. But all of this is just a guess ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby JackBean » Mon Jan 16, 2012 8:26 am

58.
small populations L & N
large populations K
not sure about M, it's small-to-middle sized
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby Adz795 » Mon Jan 16, 2012 9:17 am

GENETICS 58) Yeah, I think large population should only be K not M because (in M) from generation 2 to 3, there is a drop in frequency of 0.30 which is large I must say. Maximum genetic variability too will only be in K not M. (K&M would have been the answer if both had same variability)

CELLBIO 1) I don't understand this one.

CELLBIO 48) Why do you think a is false?
d: compare Q and R at 10°C ie on the x axis.
Q and R vary only in light intensity.
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