A new drug is developed thatinhibits formation of the flagellar filament by impairing production of the protein flagellin. Is this going to be a good drug?
A. Potentially-it would definitely only impair bacteria, but wouldn't matter for the ones that don't use a flagellum to move around.
B. Potentially-if it could be shown that it also didn't impair the production of the eukaryotic flagellum.
C. No-our eukaryotic cells depend on flagella to move around in our body, and this would impair that function.
D. No-bacterial flagella are produced using microtubules, not the protein flagellin. This drug would be useless in eliminating bacteria.
A
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When undergoing strength training, the number of _____ in each _____ undergoes a/an _____.
A. myofibrils, muscle fiber, decrease B. myofibrils, muscle fiber, increase C. sarcomeres, myofibril, decrease D. muscle fibers, muscle, increase E. motor units, muscle, increase
Why is cancer more prevalent in older individuals?
a. Cancer cells form at a faster rate. b. More mutations develop with age. c. The protective action of cytotoxic T cells breaks down with age. d. Cancers learn to disguise themselves as "self" with time. e. Older people tend to be exposed to more dangerous chemicals.
Neurons may be classified by their morphology (shape). Alpha motor neurons consist of 1 axon with many dendritic trees. Which type of morphology does this describe?
a. Multipolar b. Bipolar c. Pseudounipolar d. Interneuron
There is only a single ________ from a gene
a. mature transcript b. primary transcript c. polypeptide d. protein e. none of the above