Which Statement About the Per Gene Is False

Multiple Choice

Which statement about the per gene is false?

A) It can be mutated using chemicals.
B) It controls the duration (period) of the circadian rhythms of fruit flies.
C) In humans, a variant of this gene causes familial advanced phase sleep syndrome, a condition in which circadian rhythms are completely absent.
D) It is highly conserved from fruit flies to humans.
E) Variants of this gene cause long or short circadian rhythms.