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

 

The PGR used to induce parthenocarpy in tomatoes is:-

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

The asexual production of seeds is called as:
1. Adventition
2. Fragmentation
3. Self-fertilization
4. Apomixis

Primary and secondary growth are inhibited by:

1. Auxins

2. Gibberellins

3. Abscisic acid

4. Cytokinins

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

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

Phytochrome is a 
(1) flavoprotein

(2) glycoprotein

(3) lipoprotein

(4) chromoprotein

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

(2) IAA

(3) Ethylene

(4) ABA

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

A few normal seedlings of tomato were kept in a dark room. After a few days they were

found to have become white-coloured like albinos. Which of the following terms will you

use to describe them?

1. Mutated

2. Embolised

3. Etiolated

4. Defoliated