All the following plants are biennials except:-
1. Sugarbeet
2. Cabbages
3. Carrots
4. Wheat

Subtopic:  Vernalization |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Identify the option where all the columns are not correctly matched:

 

PGR

Nature

Actions

1.

Auxin

Indole compounds

Apical dominance, Flowering in pineapples, Parthenocarpy in tomatoes

2.

Cytokinin

Adenine derivative

 

Cell division, Adventitious shoot formation, Delay in leaf senescene

3.

Gibberellin

Terpene

Increase in length

4 .

ABA

Carotenoid derivative

Closure of stomata in water stress, inducing seed dormancy, inducing flowering in mango

 

Subtopic:  Abscisic Acid |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


The PGR used to induce parthenocarpy in tomatoes is:-

1. Auxin
2. Gibberellin
3. Cytokinin
4. ABA

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Primary and secondary growth are inhibited by:

1. Auxins

2. Gibberellins

3. Abscisic acid

4. Cytokinins

Subtopic:  Abscisic Acid |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Fruit and leaf drop at early stages can be prevented by the application of 
1. Cytokinins
2. ethylene
3. auxins
4. gibberellic acid 

Subtopic:  Growth Hormones & Auxin |
Please attempt this question first.
Please attempt this question first.

Difficulty Level:


you are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
(1) IAA and gibberellin 

(2) Auxin and cytokinin

(3) Auxin and abscisic acid

(4) Glbberellin & abscisic acid

Subtopic:  Auxin Function | Cytokinin |
Please attempt this question first.
Please attempt this question first.

Difficulty Level:


Phytochrome is a 
(1) flavoprotein

(2) glycoprotein

(3) lipoprotein

(4) chromoprotein

Subtopic:  Photoperiodism |
Please attempt this question first.

Difficulty Level:


The Avena curvature is used for bioassay of 
(1) GA3

(2) IAA

(3) Ethylene

(4) ABA

Subtopic:  Growth Hormones & Auxin |
Please attempt this question first.

Difficulty Level:


Auxin can be bioassayed by

1. Avena coleoptile curvature

2. hydroponics

3. potometer

4. lettuce hypocotyl elongation

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


What causes a green plant exposed to the light on only one side, to bend toward the

source of light as it grows?

1. Green plants need light to perform photosynthesis

2. Green plants seek light because they are phototropic

3. Light stimulates plant cells on the lighted side to grow faster

4. Auxin accumulates on the shaded side, stimulating greater cell elongation there

Subtopic:  Growth Hormones & Auxin |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: