A mutation in a gene that results in a defective protein product is known as a ____ mutation
Fill in the blank with the appropriate word.
loss-of-function
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Which of the following would most likely contribute to uncontrolled cell proliferation (i.e., cancer)?
A. a mutant CDK that was active in the absence of its cyclin binding partner B. a mutant cyclin that cannot bind to its normal CDK binding partner C. a mutant microtubule synthesis/polymerization enzyme D. a mutant DNA replication mechanism causing extra chromosome copies E. a mutant kinetochore protein that causes reduced microtubule attachment
The change in the chromosome depicted between the top and the bottom in the figure above represents
a(n) ____.
a. inversion b. duplication c. reciprocal translocation d. deletion e. Philadelphia chromosome
Study the life cycle diagram. Label B is the ________ life cycle.
A. lysogenic B. lytic C. sexual D. alternation of generations
Some RNA molecules can function like enzymes. These particular enzymatic RNA molecules are called
A) ribosomes. B) mRNA. C) ribozymes. D) RNase.