Some activators do not have an activating domain. How can they function as activators?
What will be an ideal response?
Ans: An activator without an activating domain must be able to bind a coactivator protein that does carry an activating domain.
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Why is it warmer in the tropics?
a. solar rays travel more directly into the tropics b. less dust in the atmosphere above the tropics c. less water vapor in the atmosphere above the tropics d. less absorption by greenhouse gases e. all of these are reasons why the tropics are warmer
Which feature would have given the jawed fish an evolutionary advantage over the jawless fish when it came time to hunt for food?
A. The evolution of an ectothermic lifestyle so they could regulate their body temperature based upon the environment. B. A skin that is nonscaly that also allows for an increased respiration ability. C. Gills that would increase the efficiency of their breathing. D. A cartilaginous endoskeleton that would provide for more power while swimming. E. The evolution of jaws from the gill slits that would enable them to bite more efficiently.
Which step in the creation of cDNA involves the use of reverse transcriptase?
A) step 1
B) step 2
C) step 3
D) step 4
Which of the following is/are TRUE regarding serotonin?
a. serotonin is synthesized from tryptophan b. serotonin is a peptide c. serotonin regulates anxiety and aggression d. serotonin is a neurotransmitter e. a, c, and d