Strategies for Enhancement in Food Production Test

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Strategies for Enhancement in Food Production Test - 1

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Question 1
1 / -0

Best method to increase crop yield is

A
Eradication of weeds

B
Sowing seeds of improved varieties

C
Using more fertilizers

D
Using tractors

Solution

Explanation:

Crop production can be increased by adopting a number of methods like using seeds of improved varieties, using modern method of agriculture, using fertilizers and pesticides. An improved seed variety is most important for better yield.
Question 2
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The superiority of the hybrid over either parent in one or more traits is

A
Heterosis

B
Mutation

C
Metamorphosis

D
Transformation

Solution

Explanation:

Heterosis, hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. The adjective derived from heterosis is heterotic

Hybrid obtained from two different plants have one or more traits superior than either of parents.
Question 3
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Cloning is not meant for

A
Production of HGH gene in E. coli

B
To replace the original one

C
To preserve the genotype of organism

D
Increasing production

Solution

Explanation:

Cloning is the method of increasing the number of individual having similar genetic organization. It is not a means of reproduction or production of the organism.
Question 4
1 / -0

Taichung Native-1”, a rice variety was introduced in India from

A
Philippines

B
Taiwan

C
China

D
United nations

Solution

Explanation:

Taichung Native-1 is a rice variety introduced in India from Taiwan. This variety of rice is medium sized having long inflorescence. The maturity period is also shorter than usual varieties of rice.
Question 5
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Picking up plants with superior phenotype for further propagation is

A
Hybrid vigour

B
Introduction

C
Pure line selection

D
Mass selection

Solution

Explanation:

Mass selection is a simplest , common and oldest method of crop improvement, in which large number of plants of similar superior phenotype are selected and their seeds are harvested and mixed together to constitute the new variety.
Question 6
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Polyploidy is induced through

A
Ethylene

B
Colchicine

C
Mutagenic chemicals

D
Irradiation

Solution

Explanation:

Polyploidy is a condition in which multiple sets of chromosome is present in same cell in place of usual two sets (diploid). Cell division involves karyokinesis followed by cytokinesis. Colchicine prevents the cytokinesis that results the more than two sets of chromosome.
Question 7
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Which of the following scientist’s name is not correctly matched with the theory by them?

A
Weismann – Theory of continuity of Germplasm

B
Mendel – Inheritance of acquired characters

C
Pasteur – Theory of Pangenesis

D
De Vries – Theory of continuity

Solution

Explanation:

The theory of inheritance of acquired traits is given by Weismann. Mendel gave the theories of inheritance that includes law of dominance, law of segregation and law of independent assortment.
Question 8
1 / -0

The method of producing thousands of plants through tissue culture is called

A
Bio magnification

B
Bio-fortification

C
Somatic Hybridisation

D
Micro propagation

Solution

Explanation:

The method of producing thousands of plants through tissue culture is called micro propagation. In this method, small part of plant is kept in nutrient medium along with plant hormones.
Question 9
1 / -0

Main objective of production or use of herbicide resistant genetically modified crops is to

A
Encourage eco-friendly herbicides

B
Reduce herbicide accumulation in food particles for health safety

C
Eliminate weeds from the field without the use of herbicides

D
Eliminate weeds from the field without the use of manual labor

Solution

Explanation:

Herbicides are chemicals that kill the herbs that grow with crop plants. Use of herbicides results into accumulation of herbicide in food and water. To overcome this problem herbicide resistant genetically modified crops are used.
Question 10
1 / -0

The best way to obtain bacteria and viruses free plants through tissue culture is

A
Micro propagation

B
Seed germination under aseptic conditions

C
Seed germination after gamma irradiation

D
Shoot apex or meristem culture

Solution

Explanation:

Many important plants contain systemic viruses which substantially reduce their potential yield and quality. It is, therefore, important to produce virus free stocks which can be multiplied. Generally, highly meristematic tissue of a virus infected plant remains free from virus due to their fast mitotic activity. Therefore, shoot tips and meristems of a virus infected plant are the ideal explants to produce a virus free stock.

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Re-Attempt Weekly Quiz Competition

Strategies for Enhancement in Food Production Test - 1

Result

Strategies for Enhancement in Food Production Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

Eradication of weeds

Sowing seeds of improved varieties

Using more fertilizers

Using tractors

Solution

Question 2

Heterosis

Mutation

Metamorphosis

Transformation

Solution

Question 3

Production of HGH gene in E. coli

To replace the original one

To preserve the genotype of organism

Increasing production

Solution

Question 4

Philippines

Taiwan

China

United nations

Solution

Question 5

Hybrid vigour

Introduction

Pure line selection

Mass selection

Solution

Question 6

Ethylene

Colchicine

Mutagenic chemicals

Irradiation

Solution

Question 7

Weismann – Theory of continuity of Germplasm

Mendel – Inheritance of acquired characters

Pasteur – Theory of Pangenesis

De Vries – Theory of continuity

Solution

Question 8

Bio magnification

Bio-fortification

Somatic Hybridisation

Micro propagation

Solution

Question 9

Encourage eco-friendly herbicides

Reduce herbicide accumulation in food particles for health safety

Eliminate weeds from the field without the use of herbicides

Eliminate weeds from the field without the use of manual labor

Solution

Question 10

Micro propagation

Seed germination under aseptic conditions

Seed germination after gamma irradiation

Shoot apex or meristem culture

Solution

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