Describe what is meant by photoperiodism
A response controlled by relative light and dark periods. The name of the receptors responsible for absorbing light are phytochromes. The photoperiodic stimulus is detected by the leaves of the plant.
AO
Related Biology A Level answers
All answers ▸What are oncogenes and how do they relate to tumor formation?
Explain how polymerase chain reaction is used in DNA fingerprinting
Can you explain the difference between type I and type II diabetes?
Describe how phagocytosis of a virus leads to the secretion of an antibody against this virus antigen.