Thymine dimers are dealt with by
A. no repair mechanisms.
B. photoreactivation repair.
C. SOS repair.
D. excision repair.
E. photoreactivation repair AND excision repair.
E
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The activation of protein kinase A by cyclic AMP binding likely occurs because of:
A. the activity of a phosphatase. B. the binding of GTP. C. phosphorylation. D. a conformation change.
Which of the following is NOT a motif structure commonly found in transcription factor proteins?
A. helix-turn-helix motif B. helix-loop-helix motif C. zinc finger motif D. arginine helix-loop-zipper motif E. leucine zipper motif
_______________ describe(s) the ability of a plant to grow throughout its life
a. Determinate growth b. Indeterminate growth c. Both determinate and indeterminate growth d. Neither determinate nor indeterminate growth
Once milk has gone through the process of pasteurization it is considered sterile.
A) True B) False