Ste5 binds to MAPKKK, MAPKK, and MAPK to organize the kinase cascade. What type of signaling molecule is Ste5?
A. Adapter protein
B. Scaffold
C. Second messenger
D. Enzyme
Answer: B
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A subordinate animal in a dominance hierarchy has limited access to food and mates. The most likely reason he
remains in a social group that dominates him is because ____.
a. he is exhibiting altruistic behavior b. his chances of survival and reproduction are better in the group than alone c. he expects to become dominant in the future d. he does not know that it would be an advantage for him to leave e. dominant group members will not allow him to leave
Recombinant DNA is any DNA that
a. has been cut by restriction enzymes. b. is at least four to eight base pairs in length. c. has had its gene sequence rearranged. d. consists of base pairs from two or more organisms e. is none of these.
What are the issues around the use of biofuels as an alternative to fossil fuels?
What will be an ideal response?
What are the three advantages of using hormones as messengers rather than nerves to control bodily processes?
What will be an ideal response?