NEET Biology is the scoring paper in the medical entrance examination. Here, you will discover the NEET Biology MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Biology Photoperiodism and Vernalization Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.
MCQs on Photoperiodism and Vernalization
1. This influences the flowering process
(a) Photoperiod
(b) amount of green pigment
(c) acidity of the soil
(d) water in the soil
Answer
Answer: (a)
2. Pigment phytochrome is involved in
(a) Geotropism
(b) Photoperiodism
(c) Phototropism
(d) Photorespiration
Answer
Answer: (b)
3. Phytochrome is found in
(a) Fungi
(b) Algae
(c) Flowering plants
(d) Vascular cryptograms
Answer
Answer: (c)
4. The change over from vegetative to reproductive phase in many plants takes place in response to
(a) Oxygen content in the air
(b) severity of temperature
(c) length of the day
(d) mainly the food material available in the soil
Answer
Answer: (c)
5. Reversal of etiolation effect by light is called
(a) Red-far red light interaction
(b) Photomorphogenesis
(c) Anisotropic wall expansion
(d) Richmond Lang effect
Answer
Answer: (b)
6. A plant that needs not less than 10 hours of light to flower is
(a) Day neutral plant
(b) Long day plant
(c) Short day plant
(d) None of the above
Answer
Answer: (b)
7. This hormone can replace vernalization
(a) Cytokinins
(b) Gibberellins
(c) Auxin
(d) Ethylene
Answer
Answer: (b)
8. When the dark period of short day plants is interrupted by a brief exposure of light, then the plant
(a) flowers immediately
(b) will not flower at all
(c) turns into a long day plant
(d) gives more flowers
Answer
Answer: (b)
9. The pigment involved in red-far red light interconversion is
(a) Lycopen
(b) Phytochrome
(c) Cytochrome
(d) Xanthophyll
Answer
Answer: (b)
10. With which of the following process Cholodny-Went theory is concerned
(a) Photorespiration
(b) Photoperiodism
(c) Phototropism
(d) Photomorphogenesis
Answer
Answer: (c)