Question 1
EMS (ethylmethane sulfonate) is mutagenic because ________.
◦ it breaks phosphodiester bonds
◦ it adds alkyl groups to bases
◦ it forms cross-links between DNA strands
◦ it makes DNA more susceptible to radiation
◦ it causes chromosomal deletions
Question 2
Genes for regulatory elements, such as
creb, were found to be important in animal learning. Which of the following would increase the probability that such an element is studied throughout the animal kingdom?
◦ its unique to
Drosophila◦ the finding that
creb is highly conserved
◦ the large number of copies of the
creb gene within a genome
◦ the interaction of
creb with cAMP
◦ the finding that
creb activates odor perception