Which of the following PGRs have isolated from autoclaved herring sperm DNA?

1.Cytokinins

2.Gibberellins

3.Auxin

4.Ethylene

Subtopic:  Cytokinin |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following occurs naturally in plants?

1.Kinetin

2.NAA

3.IBA

42,4 D

Subtopic:  Cytokinin |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following figure depicts Apical Dominance?

1.c

2.a

3.Does not belong Apical Dominance

4.The information is insufficient to predict

Subtopic:  Growth Hormones & Auxin |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Zeatin

1.Isolated from herring sperm

2.Isolated from coconut milk and corn Kernels

3.Isolated from corn Kernels

4.Isolated from rice seedlings

Subtopic:  Cytokinin |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Natural Cytokinins are not found in

1.Root apices

2.Developing shoot buds

3.Young Fruits

4.Root hair zone

Subtopic:  Cytokinin |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Cytokinins

1. Helps to produce new leaves

2. Helps to produce chloroplasts in leaves

3. Lateral shoot growth, Adventitious Shoot Formation

4. All of these

Subtopic:  Cytokinin |
 95%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Cytokinin

Which of the following is not correct?

(1) Help to overcome apical dominance

(2) They promote nutrient mobilisation and helps in the delay of leaf senescence

(3) Lateral Shoot Growth

(4) Formation of Tap root

Subtopic:  Cytokinin |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following hormones is synthesised in large amounts by tissues undergoing senescence and ripening fruits?

(1) Ethylene

(2) ABA

(3) Auxins

(4) GA3

Subtopic:  Ethylene |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Influences of Ethylene in plants do not include

(1) Horizontal growth of seedlings

(2) Swelling of the axis

(3) Apical hook formation in dicot seedlings

(4) Lateral shoot growth

Subtopic:  Ethylene |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Ethylene does not perform

(1) Promotes senescence and abscission of plant organs especially of leaves and flowers

(2) Highly effective in fruit ripening

(3) Enhances the respiration rate during ripening of the fruits

(4) Overcome the apical dominance

Subtopic:  Ethylene |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch