Most p53 mutations that result in cancer are a result of loss of function in p53. Describe one method through which a gain-of-function mutation in p53 could cause cancer
What will be an ideal response?
The gain-of-function mutation in p53 could result in the overproduction of chromatin-remodeling enzymes. The improper expression of these enzymes would likely result in misexpression of other genes and could lead to tumorigenesis.
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In the IP3/DAG pathway, what is the effector molecule?
a. IP3 b. DAG c. PIP2 d. phospholipase C e. calcium
Four of the following can cause birth defects. Which one is the exception?
a. tobacco b. alcohol c. poor nutrition d. rubella e. folic acid
The structure of the cartilaginous and bony fishes that detects vibrations in the water is the
a. anal fin. b. operculum. c. nostrils. d. lateral line.
One true characteristic of all animals is that they:a
are mobile. b. have a brain. c. are heterotrophs. d. have an organ system. e. only show sexual reproduction.