Phytochrome comprises a pigment and a:
Correct answer: D. Protein
- A. Lipid
- B. Carbohydrate
- C. Mineral
- D. Protein
Explanation
Phytochrome is a chromoprotein. It acts as a photoreceptor in plants. It is sensitive to light in the red and far-red regions. Phytochromes regulate processes linked with photoperiods like flowering, seed germination, chlorophyll synthesis, etc.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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