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 ABA and Other Growth Regulators Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.
MCQs on ABA and Other Growth Regulators
1. Abscission zone can be induced for formation by
(a) abscisic acid
(b) cytokinins
(c) gibberellins
(d) auxins
Answer
Answer: (a)
2. Presence of this in the seed is linked with dormancy
(a) abscisic acid
(b) gibberellic acid
(c) starch
(d) ethylene
Answer
Answer: (a)
3. Abscisic acid treatment results in
(a) root elongation
(b) stomatal closure
(c) stem elongation
(d) leaf expansion
Answer
Answer: (b)
4. ABA contains
(a) one asymmetric and two symmetric carbon atoms
(b) one symmetric and two asymmetric carbon atoms
(c) one asymmetric carbon atom
(d) one symmetric carbon atom
Answer
Answer: (c)
5. Morphactins are
(a) synthetic auxins
(b) synthetic gibberellins
(c) synthetic growth regulators
(d) none of these
Answer
Answer: (c)
6. Dormin is a
(a) abscisic acid
(b) growth promoter
(c) auxin
(d) none of these
Answer
Answer: (a)
7. This is wound hormone
(a) phyllocaline
(b) auxin
(c) hormone only
(d) necrohormone
Answer
Answer: (d)
8. This is a plant hormone
(a) acetylene
(b) dormin
(c) formalin
(d) all of these
Answer
Answer: (b)
9. This is a naturally occurring growth inhibitor
(a) NAA
(b) IAA
(c) GA
(d) ABA
Answer
Answer: (d)
10. Abscisic acid regulates
(a) leaf fall and dormancy
(b) cell division
(c) cell elongation and cell wall formation
(d) shoot elongation
Answer
Answer: (a)