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Practice question

Question

In dark-grown seedlings, phytochrome is predominantly present as:

Options

Choose one · Correct answer highlighted

Explanation

B fits best: Pr. Keep the PHYTOCHROME basics straight and Pr stands out as the precise answer. Avoid: A) Pfr; C) Degraded form; D) Inactive dimer. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.