Strategies for Enhancement in Food Production Test

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Strategies for Enhancement in Food Production Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

Plant can be made disease resistant through

A
Colchicine treatment

B
Hormone treatment

C
Breeding with wild varieties

D
X-ray treatment

Solution

Wild varieties of plant are generally disease resistance. Breeding with wild varieties may results into disease resistance varieties of crops.
Question 2
1 / -0

Mass selection is preferred in case of

A
Cross pollinated plants

B
Mutation

C
Self-pollinated plants

D
Vegetatively propagated plants

Solution

Mass selection is the method of selecting superior plants from the group of plants grown in a field. Self-pollinated plants are generally homozygous without much variation
Question 3
1 / -0

Pusa RH-10 is a

A
Long stapled coloured variety of Cotton

B
Lysine rich amber coloured Wheat variety

C
Long and scented grained variety of Rice

D
High yielding variety of Sunflower

Solution

Pusa RH-10 is a rice variety having long and scented grains. This plants mature in less time and have resistance to a number of disease.
Question 4
1 / -0

Haploid plantlets can be produced by

A
Cotyledon culture

B
Embryo culture

C
Meristem culture

D
Pollen culture

Solution

Pollen grains are haploid cells as they contain half the number of chromosome as present in normal cells. Pollen grain is formed by reduction division in which chromosome number reduces to half.
Question 5
1 / -0

Which one is not an aim of plant breeding

A
high-yielding varieties

B
disease-free varieties

C
Late maturing varieties

D
Early maturing varieties

Solution

Plant breeding is done to get high yielding varities, disease free varieties and disease free varieties. Breeding is never done to increase the maturity period of crops.
Question 6
1 / -0

Selection of homozygous plant is

A
Pure line selection

B
Mixed selection

C
Mutation

D
Mass selection

Solution

Selection of homozygous plants is called pure line selection. Pure line is essential for hybridization experiment to obtained desired traits in plants. Pure line is obtained by successive self-breeding for many times
Question 7
1 / -0

Heterosis cannot be maintained in sexually reproducing plants as it disappear on

A
Out breeding

B
Inbreeding

C
Cross breeding

D
Mutation

Solution

Heterosis cannot be maintained in sexually reproducing plants as it disappear on inbreeding and result into breeding depression. The traits segregate during gamete formation.
Question 8
1 / -0

Gene banks comprise

A
Seed banks, orchards, tissue culture and cryopreservation

B
Seed banks and cryopreservation

C
Seed banks, tissue culture, and cryopreservation

D
Tissue culture and cryopreservation

Solution

Gene banks comprise Seed banks, orchards, tissue culture and cryopreservation. Genomes of different plants are preserved for used in genetic program like plant breeding.
Question 9
1 / -0

Which of the following is the consequence of plant disease
i. Reduced yield.
ii. Lower quality of produce
iii. Increased cost of production
iv. Poisonous produce
v. Variation in the genome.

A
Only i, ii, iii and iv

B
Only ii, iii, iv and v

C
Only i, iii, iv and v

D
Only iii, iv and v

Solution

The consequences of plant disease are reduced yield, lower quality of produce, increased cost of production and sometimes poisonous produce. It do not produce variation in the genome.
Question 10
1 / -0

In crop improvement program, haploids are important because they

A
Require one half of nutrients

B
Are helpful in study of meiosis

C
Grow better under adverse conditions

D
Form perfect homozygous individuals on diploidisation

Solution

In crop improvement program, haploids are important because they form perfect homozygous individuals on diploidisation. Homozygous individuals are required for plant breeding programs.

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Re-Attempt Weekly Quiz Competition

Strategies for Enhancement in Food Production Test - 7

Result

Strategies for Enhancement in Food Production Test - 7

Score

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Rank

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SHARING IS CARING

Question 1

Colchicine treatment

Hormone treatment

Breeding with wild varieties

X-ray treatment

Solution

Question 2

Cross pollinated plants

Mutation

Self-pollinated plants

Vegetatively propagated plants

Solution

Question 3

Long stapled coloured variety of Cotton

Lysine rich amber coloured Wheat variety

Long and scented grained variety of Rice

High yielding variety of Sunflower

Solution

Question 4

Cotyledon culture

Embryo culture

Meristem culture

Pollen culture

Solution

Question 5

high-yielding varieties

disease-free varieties

Late maturing varieties

Early maturing varieties

Solution

Question 6

Pure line selection

Mixed selection

Mutation

Mass selection

Solution

Question 7

Out breeding

Inbreeding

Cross breeding

Mutation

Solution

Question 8

Seed banks, orchards, tissue culture and cryopreservation

Seed banks and cryopreservation

Seed banks, tissue culture, and cryopreservation

Tissue culture and cryopreservation

Solution

Question 9

Only i, ii, iii and iv

Only ii, iii, iv and v

Only i, iii, iv and v

Only iii, iv and v

Solution

Question 10

Require one half of nutrients

Are helpful in study of meiosis

Grow better under adverse conditions

Form perfect homozygous individuals on diploidisation

Solution

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