300+ TOP MCQs on Gibberellin In Plants and Answers

NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Gibberellin In Plants Multiple Choice Questions

MCQs on Gibberellin In Plants :

1. This is not a function of gibberellins
(a) promote dormancy
(b) promote cell elongation
(c) promote parthenocarpic fruit formation
(d) promote elongation of internodes

Answer

Answer: (a)

2. Elongation or lengthening of rosette plants is obtained by treating it with
(a) cytokinin
(b) gibberellin
(c) zeatin
(d) auxin

Answer

Answer: (b)

3. Generally, translocation of gibberellins is non-polar occurring through
(a) capillary rise
(b) phloem
(c) xylem
(d) both xylem and phloem

Answer

Answer: (b)

4. The gibberellin involved in flowering is
(a) GA1
(b) GA3
(c) GA4
(d) GA9

Answer

Answer: (d)

5. The earliest phases of synthesis of gibberellin occur in
(a) plastids
(b) mitochondria
(c) peroxisome
(d) cytoplasm

Answer

Answer: (a)

6. Nullification of genetic dwarfism is possible by spraying with
(a) zeatin
(b) auxin
(c) gibberellin
(d) cytokinin

Answer

Answer: (c)

7. The hormone involved in the regulation of florigen synthesis is
(a) zeatin
(b) gibberellin
(c) ethylene
(d) cytokinin

Answer

Answer: (b)

8. Gibberellins found in the aleurone layer of barley increases the transcription of
(a) lipase and cellulase
(b) protease and amylase
(c) protease and cellulase
(d) lipase and protease

Answer

Answer: (b)

9. This bioassay is used to test the presence of gibberellins
(a) dwarf pea elongation technique
(b) chlorophyll preservation test
(c) excised radish cotyledon enlargement test
(d) rice seedling growth inhibition test

Answer

Answer: (a)

10. Gibberellins were named after a fungus known as
(a) Gibberella acuminata
(b) Gibberella africana
(c) Gibberella fujikuroi
(d) Gibberella gaditijirrii

Answer

Answer: (c)

Leave a Reply

Your email address will not be published. Required fields are marked *