Gene expression is often assayed by measuring the level of mRNA produced from a gene. If one is interested in knowing the amount of a final active gene product, a potential problem of this method is that it ignores the possibility of _____
A) chromatin condensation control
B) transcriptional control
C) alternative splicing
D) translational control
D
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List some structures that distinguish bivalves from the other molluscan classes.
What will be an ideal response?
Which of the following is NOT true of the glucocorticoid receptor?
A. The receptor contains a nuclear localization signal (NLS). B. When bound to glucocorticoids, the receptors will bind covalently and irreversibly to each other to form dimers. C. Glucocorticoid receptor dimers bind glucocorticoid response elements (GREs). D. Binding of glucocorticoid receptor dimers to GREs activates the transcription of the adjacent gene. E. The receptor contains a binding domain for glucocorticoids.
Which of the following statements about the
electromagnetic spectrum is true? a. Infrared energy is sufficient to produce ionization. b. Infrared radiation has more energy than red radiation. c. Visible light has more energy than ultraviolet radiation. d. Chlorophyll absorbs some visible wavelengths, but not all. e. Chloroplasts absorb all wavelengths of visible light equally.
The region at which the RNA polymerase binds is the ________ region.
A. coding B. promoter C. leader D. trailer