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Question: 
.This hormone is used in beer-brewing industry

1.Zeatin

2.Ethylene

3.Gibberellins

4.Abscissic acid

Posted Date:-2021-10-11 09:55:49

Question: 
14.Bolting is useful to induce early flowering in

1.Medicinal plants

2.Oil yielding plants

3.Cereals

4.Ornamental plants

Posted Date:-2021-10-11 09:55:49

Question: 
19.Only true natural auxin of higher plants is

1.GA

2.NAA

3.IAA

4.Neatin

Posted Date:-2021-10-11 09:55:49

Question: 
A hormone like synthetic organic compound which in small amounts promotes or inhibits growth and development is called

1.Growth inhibitor

2.Growth regulator

3.Plant hormone

4.NAA

Posted Date:-2021-10-11 09:55:49

Question: 
Ageing process of plants is delayed by

1.Auxins

2.Gibberellins

3.Cytokinins

4.NAA

Posted Date:-2021-10-11 09:55:49

Question: 
An example of genetically identical cells of common origin is

1.Gamete

2.Zygote

3.Spore

4.Pollen

Posted Date:-2021-10-11 09:55:49

Question: 
An example of synthetic plant growth regulator is

1.1AA

2.NAA

3.Auxin

4.CoA

Posted Date:-2021-10-11 09:55:49

Question: 
An important plant hormone is

1.Androgen

2.Algin

3.Auxin

4.Ferrodoxin

Posted Date:-2021-10-11 09:55:49

Question: 
An organic compound that retards growth is called

1.Growth regular

2.Plant hormone

3.Growth inhibitor

4.Auxin

Posted Date:-2021-10-11 09:55:49

Question: 
An organic substance which is active in very minute quantity is

1.Plant hormone

2.Growth regulator

3.Growth inhibitor

4.IAA

Posted Date:-2021-10-11 09:55:49

Question: 
Apical dominance caused by IAA is reserved by

1.Auxin

2.Gibberellin

3.NAA

4.Kinetin

Posted Date:-2021-10-11 09:55:49

Question: 
Auxins produced by the apical buds suppress the growth of the

1.Terminal buds

2.Axillary buds

3.Lateral buds

4.Terminal flowers

Posted Date:-2021-10-11 09:55:49

Question: 
Bolting is useful to induce early flowering in

1.Medicinal plants

2.Oil yielding plants

3.Cereals

4.Ornamental plants

Posted Date:-2021-10-11 09:55:49

Question: 
Cell division of tobacco cells in tissue culture was stimulated by

1.NAA

2.Gibberellin

3.Kinetin

4.Auxin

Posted Date:-2021-10-11 09:55:49

Question: 
Chemical name of Kinetin is

1.24-dichloro phenoxyacetic acid

2.Indole-3-acetic acid

3.Naphthalene-acetic acid

4.6-furfuryl amino purine

Posted Date:-2021-10-11 09:55:49

Question: 
Coleoptile curvature test is used as a confirmation of the compound as

1.Gibberrellin

2.Cytokinin

3.Auxin

4.Zeatin

Posted Date:-2021-10-11 09:55:49

Question: 
Cytokinins are not abundant in

1.Embryos

2.Developing fruits

3.Developing roots

4.Developing stems

Posted Date:-2021-10-11 09:55:49

Question: 
Development of ovary into fruit without the act of fertilization is called

1.Parthenocarpy

2.Epicarpy

3.Endocarpy

4.Mesocarpy

Posted Date:-2021-10-11 09:55:49

Question: 
Flowering can be induced in plants which require specific photo period by

1.Auxins

2.Gibberellins

3.Cytokinins

4.Ethylene

Posted Date:-2021-10-11 09:55:49

Question: 
Flowering can be induced in plants which require specific photo period by

1.Auxins

2.Gibberellins

3.Cytokinins

4.Ethylene

Posted Date:-2021-10-11 09:55:49

Question: 
Gibberellins were discovered in

1.Austria

2.Japan

3.Holland

4.Germany

Posted Date:-2021-10-11 09:55:49

Question: 
Gibberellins were extracted from

1.Bacteria

2.Virus

3.Algae

4.Fungi

Posted Date:-2021-10-11 09:55:49

Question: 
Growth and differentiation results in

1.Development

2.Retardation

3.Movement

4.Inhibition

Posted Date:-2021-10-11 09:55:49

Question: 
Growth in length of plants can be measured by

1.Potometer

2.Mercury manometer

3.Light Screen

4.Lever auxanometer

Posted Date:-2021-10-11 09:55:49

Question: 
Growth in plants is regulated through

1.Gene action

2.Biochemical parameters

3.Environmental conditions

4.All the three

Posted Date:-2021-10-11 09:55:49

Question: 
In plants where IAA fails to induce parthenocarpy this hormone is used successfully

1.Ethylene

2.NAA

3.Gibberellins

4.Zeatin

Posted Date:-2021-10-11 09:55:49

Question: 
Kinetin can promote bud or root formation in callus tissue in combination with

1.NAA

2.GA

3.24-D

4.IAA

Posted Date:-2021-10-11 09:55:49

Question: 
Kinetin was isolated first from

1.Oat

2.Fungus

3.Zea mays

4.Herring

Posted Date:-2021-10-11 09:55:49

Question: 
Limited type of growth is seen in this plant

1.Annul

2.Biennial

3.Perennial

4.Woody plants

Posted Date:-2021-10-11 09:55:49

Question: 
Name of the instrument with a movable pointer fixed to a pulley and a graduated are fixed to a stand

1.Darwin�s photometer

2.Mercury manometer

3.Lever auxanometer

4.Light screen

Posted Date:-2021-10-11 09:55:49

Question: 
Origin of parts or organs and the gross from of the plant is referred as

1.Gametogenesis

2.Morphogenesis

3.Organogenesis

4.Blastogenesis

Posted Date:-2021-10-11 09:55:49

Question: 
Phototropic movements of plants were studied by

1.Went

2.Embden

3.Parnas

4.Darwin

Posted Date:-2021-10-11 09:55:49

Question: 
Premature fall of leaves and fruits are prevented by

1.GA?

2.GA?

3.Zeatin

4.Auxin

Posted Date:-2021-10-11 09:55:49

Question: 
Seedless fruits are produced by using

1.Cytokinin

2.Zeatin

3.Gibberellin

4.Auxin

Posted Date:-2021-10-11 09:55:49

Question: 
Sigmoidal pattern of growth is seen in

1.Annuals

2.Biennials

3.Woody Perennials

4.Annuals and woody Perennials

Posted Date:-2021-10-11 09:55:49

Question: 
The botanical name of fungus from which gibberellins were extracted

1.Avena

2.Mirabilis jalapa

3.Gibberella fujikuroi

4.Lathyrus odoratus

Posted Date:-2021-10-11 09:55:49

Question: 
The botanical name of oat is

1.Avena

2.Antirrhinum

3.Cicer

4.Sorghum

Posted Date:-2021-10-11 09:55:49

Question: 
The combination of hormones required to produce plantlets in tissue culture is

1.Auxin and ethylene

2.Kinetin and IAA

3.NAA and IAA

4.Kinetin and NAA

Posted Date:-2021-10-11 09:55:49

Question: 
The Concentration of auxin required to promote cell enlargement along the longitudinal axis of stem is

1.0.1 M

2.0.001 M

3.1.001 M

4.0.001 M

Posted Date:-2021-10-11 09:55:49

Question: 
The cytokinins isolated from endosperm of tender coconut is

1.Ethylene

2.Auxin

3.Zeatin

4.NAA

Posted Date:-2021-10-11 09:55:49

Question: 
The following hormone stimulates respiration in plants is

1.GA1

2.Auxin

3.GA2

4.Cytokinin

Posted Date:-2021-10-11 09:55:49

Question: 
The germination of potato tubers during storage is prevented by spraying

1.Gibberrellins

2.Auxin

3.Cytokinin

4.Ethylene

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone applied to hasten rooting in stem cutting of plants is

1.Ethylene

2.Giberrellin

3.Cytokinin

4.Auxin

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone that breaks dormancy in some light sensitive seeds is

1.Cytokinins

2.Auxin

3.Gibberellin

4.NAA

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone that breaks dormancy in some light sensitive seeds is

1.Cytokinins

2.Virus

3.Auxin

4.Gibberellin

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone that induces the formation of parthenocarpic fruits is

1.Auxin

2.Zeatin

3.IAA

4.Cytokinin

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone which breaks dormancy of buds is

1.IAA

2.Auxin

3.Cytokinin

4.Gibberellin

Posted Date:-2021-10-11 09:55:49

Question: 
The hormone which causes apical dominance is

1.GAz

2.Zeatin

3.Auxin

4.Cytokinin

Posted Date:-2021-10-11 09:55:49

Question: 
The internode elongation in rice plants is due to

1.Polyphagia disease

2.Bakanae disease

3.Hydrophobia disease

4.Polydypsia disease

Posted Date:-2021-10-11 09:55:49

Question: 
The name of the disease caused by Gibberella fujikurai is

1.Bakanae

2.Cytokinesis

3.Polyphagia

4.Hydrophobia

Posted Date:-2021-10-11 09:55:49

Question: 
The number of gibberellins isolated from different plant sources is

1.40

2.50

3.90

4.120

Posted Date:-2021-10-11 09:55:49

Question: 
The pattern of growth in plan6ts shows

1.L shaped curve

2.straight curve

3.Triangle curve

4.S shaped curve

Posted Date:-2021-10-11 09:55:49

Question: 
The period of declining growth and the organism maintains the size it has already achieved is called

1.Steady state phase

2.Log phase

3.Lag phase

4.Stable phase

Posted Date:-2021-10-11 09:55:49

Question: 
The physiological properties of auxins are used in the field of

1.Agriculture

2.Horticulture

3.Medicine

4.Sericulture

Posted Date:-2021-10-11 09:55:49

Question: 
The rapid growing phase of sigmoid curve is known as

1.Steady state phase

2.Log phase

3.Lag phase

4.Stable phase

Posted Date:-2021-10-11 09:55:49

Question: 
The sigmoid growth curve contains

1.2 phases

2.3 phases

3.4 phases

4.5 phases

Posted Date:-2021-10-11 09:55:49

Question: 
The steady state phase is followed by sentence and death in these plants

1.Annuals

2.Biennials

3.Annuals and Biennials

4.Perennials

Posted Date:-2021-10-11 09:55:49

Question: 
The synthetic auxin used as herbicide is

1.Naphthalene-acetic acid (NAA)

2.Indole-3-acetic acid (IAA)

3.24-dichloro phenoxyacetic acid (2 4-D)

4.6-furfuryl amino purine

Posted Date:-2021-10-11 09:55:49

Question: 
The transformation of genetically identical cells of common origin into different tissues is

1.Cell division

2.Enlargement

3.Cell differentiation

4.Movement

Posted Date:-2021-10-11 09:55:49

Question: 
This is not a gibberelic acid

1.GA1

2.GA2

3.GA3

4.IAA

Posted Date:-2021-10-11 09:55:49

Question: 
This is not the usual site of auxin formation in higher plants

1.Meristems

2.Enlarging tissues

3.Enlarging flowers

4.Enlarging young leaves

Posted Date:-2021-10-11 09:55:49

Question: 
What is the net result of the metabolic processes going on in a plant

1.Respiration

2.Photosynthesis

3.Growth

4.Transpiration

Posted Date:-2021-10-11 09:55:49

Question: 
Zeatin is isolated from

1.Gibberella fujikuroi

2.Zea mays

3.Avena

4.Oat

Posted Date:-2021-10-11 09:55:49

Posted on by R4R Team

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