Examlex
Which one of the following is an irregular, gram- positive rod?
Phytochrome
A photoreceptor protein in plants that regulates growth, development, and flowering in response to light.
Photoperiodism
The physiological response (such as flowering) of plants to variations in the length of daylight and darkness.
Phytochrome
A light-detecting pigment found in plants that regulates various developmental processes by responding to red and far-red light.
Necrotic Lesions
Areas of dead tissue on an organism that result from disease, injury, or lack of blood supply.
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