NEET Botany Plant Growth and Development Questions Solved

AIIMS - 2015

The biological clock measures the length at each night by the?

(a) relative amount of red absorbing and far-red absorbing phytochrome present at dawn
(b) amount of tar-red absorbing phytochrome at dusk
(c) relative amount of red absorbing and far-red absorbing phytochrome at mid day
(d) rate at which are kind of phytochrome is converted to the other

The biological clock measures the length of each night by the relative amount at red absorbing and far-red absorbing phytochrome present at dawn.

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