As per and tim proteins degrade over time,
a. the clock protein is inhibited, leading to greater production of per and tim
b. the clock protein is activated, leading to greater production of per and tim.
c. more melatonin is released by the pineal gland, leading to greater production of per and tim.
d. the suprachiasmatic nucleus (SCN) is inhibited, leading to less production of per and tim.
b
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