A brief pulse of red light will induce a response, provided that the light is sufficiently bright, and conversely, very dim light will work if the irradiation time is long enough. 

This reciprocal relationship between fluence rate and time is known as the law of reciprocity

TLS Online TPP Program

#Id: 5091

#Unit 6. System Physiology – Plant

These genes encode proteins of the COP1–SUPPRESSOR OF PHYA (COP1–SPA) complex, the COP9 signalosome (CSN) complex.

TLS Online TPP Program

#Id: 6619

#Unit 7. System Physiology – Animal

Inhibin is produced by ovarian granulosa cells, Inhibits FSH secretion from the anterior pituitary.

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#Id: 1433

#Unit 4. Cell Communication and Cell Signaling

Integrins have an important function in neuroregeneration after injury of the peripheral nervous system.

TLS Online TPP Program

#Id: 9500

#Unit 6. System Physiology – Plant

Maize genotypes that carry the Hm1 gene, which encodes an enzyme that can metabolize and thereby detoxify HC toxin are resistant to C. carbonum.

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#Id: 2269

#Unit 11. Evolution and Behavior

Phenotypic plasticity can be visualized with the reaction norm.