Strategies for Enhancement in Food Production Test

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Strategies for Enhancement in Food Production Test - 21

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Weekly Quiz Competition

Question 1
1 / -0

The best way to increase the yield of wheat in India is

A
To sow seeds of improved varieties

B
To use tractors to till the soil

C
To reduce the quantity of ration consumers

D
To remove weeds from wheat fields

Solution

India, being a very populated country requires a lot of buffer stock of food grains. In India, wheat and rice are staple diet grains compared to any other grains. More population results in the increase of demand for land and thus, reduction in the area of farm lands. It is thus, a demanding situation, where more hybrid high-yielding varieties of these grains are to be used so that the produce can be increased manifold to meet the nutritional requirements of the entire nation.
Thus, the correct answer is option A.
Question 2
1 / -0

Piece of sterile plant tissue that is used for tissue culture under aseptic condition is

A
Inoculant

B
Explant

C
Clone

D
Somaclone

Solution

Explant is any portion taken from a plant that will be used to initiate a culture. It can be a portion of the shoot or of the leaves or even just some cells. It is a piece of sterile plant tissue to be used for tissue culture under aseptic conditions. Inoculant is the active material used in an inoculation. Clones are organisms that are exact genetic copies. Somacloning is cloning of plant with a single cell.
Thus, the correct answer is option B.
Question 3
1 / -0

Bombay green banana cultivation is the result of?

A
Mass selection

B
Pure line selection

C
Clonal selection

D
Natural selection
Solution
- Several varieties of clonal crops have been developed either by bud selection or by clonal selection from heterogeneous clones.
- Bud selection has been done in several fruit trees.
- For example, 'Bombay green banana' is considered to be a bud selection from 'Dwarf Cavendish'; 'Pidi Monthan' from 'Monthan', and 'High gate' from 'Gross Michel'.
- Thus, the correct answer is option C.
Question 4
1 / -0

The new varieties of plants are produced by

A
Selection and hybridization

B
Mutation and selection

C
Introduction and mutation

D
Selection and introduction

Solution

As a part of agriculture, man started rearing plants and animals to meet his requirements. This is when humans started to learn how to influence the process of natural evolution, so as to breed plant or animals. Slowly and gradually, this process of expedited evolution, through selection and cultivation of plants, acquired the form of a routine endeavor called as plant breeding. In this, heredity, which refers to the passage of various characteristic features from the main plant (the parent) to the plantlets (the progeny), plays an important role. The effects of heredity had been apparent to early man and he had taken advantage of them ever since the advent of agriculture. Various methods have evolved in plant breeding.
One of the most important methods is that of selection. After the selection of parents with desired characteristics, they can be hybridized to yield better offsprings with both the parent characteristics.
So, the correct answer is 'selection and hybridization'
Question 5
1 / -0

A plant cell has a potential to develop into the full plant. This property of the plant cell is called ______.

A
Tissue culture

B
Totipotency

C
Pleuripotency

D
Gene cloning
Solution
A plant cell has the potential to develop into a complete plant. This property of the plant cell is called totipotency.
The basis of tissue culture is to grow a large number of cells in a sterile controlled environment.
The cells are obtained from the stem, root or other plant parts and are allowed to grow in culture medium containing mineral nutrients, vitamins and hormones to encourage cell division and growth.
As a result, the cells in culture will produce an unorganised proliferative mass of cells which is known as callus tissue, which can be further stimulated to differentiate into an embryo, a process called embryogenesis.
So, the correct answer is option B.
Question 6
1 / -0

The hybrids are generally found to be superior to their parents, it is because of

A
Homozygosity

B
Hybrid vigour

C
Parents are generally weak

D
None of the above

Solution

Heterosis is also called as hybrid vigour. It is the increase in such characteristics as size, growth rate, fertility and yield of a hybrid organism over those of its parents. Plant and animal breeders exploit heterosis by mating two different pure-bred lines that have certain desirable traits. Because of this, hybrids are generally found to be superior to their parents. Thus, the correct answer is option B.
Question 7
1 / -0

The Triticum aestivum wheat is

A
Haploid

B
Diploid

C
Tetraploid

D
Hexaploid

Solution

Common wheat (Triticum aestivum), also known as bread wheat, is an allohexaploid (an allopolyploid with six sets of chromosomes, of which two come from Triticum urartu (einkorn wheat) and two from Aegilops speltoides. The last two sets of chromosomes came from Aegilops tauschii. It has 42 chromosomes.
Thus, the correct answer is option D.
Question 8
1 / -0

Earliest animal domesticated by primitive man was

A
Goat

B
Dog

C
Horse

D
Cat
Solution
- Dogs are the earliest animals made as pets. The first potential evidence of dog domestication dates back to 30,000 B.C., in the form of a wolflike creature found in a cave in Belgium.
- Other evidence suggests dogs weren't domesticated until thousands of years later.
- Before they were pets, dogs helped human hunt and cats helped guard grain supplies by keeping rats and mice away.
- Eventually, people started to treat these animals more like pets.
- At present human-canine bonding is the mutually beneficial and dynamic relationship between human and dogs that is studied by psychologists, anthropologists and ethologists.
So, the correct answer is option B.
Question 9
1 / -0

One of the popular method employed in the production of new variety of plants is

A
Selection and vegetative propagation

B
Chemical treatment and selection

C
Exposure to radiation and selection

D
Selection and hybridization

Solution

Various methods have evolved in plant breeding. One of the most important methods is that of selection. After the selection, parent plants are hybridized to yield new varieties, which are better than parent plants. Thus, option D is correct.
Question 10
1 / -0

Breeding of crops with high levels of minerals, vitamins and proteins is called

A
Micropropagation

B
Somatic hybridisation

C
Biofortification

D
Biomagnification

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Re-Attempt Weekly Quiz Competition

Strategies for Enhancement in Food Production Test - 21

Result

Strategies for Enhancement in Food Production Test - 21

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SHARING IS CARING

Question 1

To sow seeds of improved varieties

To use tractors to till the soil

To reduce the quantity of ration consumers

To remove weeds from wheat fields

Solution

Question 2

Inoculant

Explant

Clone

Somaclone

Solution

Question 3

Mass selection

Pure line selection

Clonal selection

Natural selection

Solution

Question 4

Selection and hybridization

Mutation and selection

Introduction and mutation

Selection and introduction

Solution

Question 5

Tissue culture

Totipotency

Pleuripotency

Gene cloning

Solution

Question 6

Homozygosity

Hybrid vigour

Parents are generally weak

None of the above

Solution

Question 7

Haploid

Diploid

Tetraploid

Hexaploid

Solution

Question 8

Goat

Dog

Horse

Cat

Solution

Question 9

Selection and vegetative propagation

Chemical treatment and selection

Exposure to radiation and selection

Selection and hybridization

Solution

Question 10

Micropropagation

Somatic hybridisation

Biofortification

Biomagnification

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