Improvement in Food Resources Test

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Improvement in Food Resources Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Colchicine is a chemical substance used to bring about which of the following processes artificially?

A
Polyploidy

B
Induced mutation

C
Intervarietal hybridisation

D
Genetic modification

Solution

Colchicine is also used for inducing polyploidy in plant cells during cellular division by inhibiting chromosome segregation during meiosis. Half the resulting gametes, therefore, contain no chromosomes, while the other half contains double the usual number of chromosomes (i.e. diploid instead of haploid, as gametes usually are) and lead to embryos with double the usual number of chromosomes (i.e. tetraploid instead of diploid).
Question 2
1 / -0

Organic farming is the technique of raising crops through the use of which of the following?

A
Manure

B
Bio-fertiliser

C
Resistant varieties

D
All of these

Solution

Organic farming is an integrated farming system that strives for sustainability, the enhancement of soil fertility and biological diversity by use of manures, bio-fertilisers and resistant varieties. It prohibits the use of synthetic pesticides, antibiotics, synthetic fertilisers, genetically modified organisms, and growth hormones.
Question 3
1 / -0

Which of the following statements is incorrect?

A
Broiler chickens are fed with vitamin rich supplementary feed

B
Egg-layers are fed with protein rich feed with adequate fat.

C
Appropriate vaccination can prevent the occurrence of infectious diseases.

D
Nutritional deficiency can lead to diseases in the poultry fowl.

Solution

The ration (daily food requirement) for broilers is protein rich with adequate fat. Other three options are correct.
Question 4
1 / -0

Capture fishery and culture fishery are the two types of fisheries. All of the following are the characteristics of capture fishery, except that

a. it is a method of obtaining fish from the natural resources
b. there is no seeding and raising of fish
c. it is undertaken mostly inland and near the seashore

A
Only a

B
Only a and b

C
Only c

D
Only b and c

Solution

Capture fishery refers to all kinds of harvesting of naturally occurring living resources in both marine and freshwater environments. It is undertaken in both inland and marine waters.
Question 5
1 / -0

The indigenous breeds of poultry are hardy and possess natural immunity against common diseases. Which of the following is not an indigenous breed of poultry?

A
Aseel

B
Busra

C
White leghorn

D
Chittagong

Solution

White leghorn is not an indigenous breed of poultry. It is an exotic breed of poultry producing long white eggs. Due to its small size, it needs low maintenance.
Question 6
1 / -0

Which of the following common diseases of cattle causes irritation, blisters and eruptions on the skin surface?

A
Cowpox

B
Foot-and-mouth disease

C
Rabies

D
Dermatitis

Solution

Dermatitis causes irritation, blisters and eruptions on the skin surface.
Question 7
1 / -0

The levels of which of the following vitamins are kept high in poultry feed?

A
A and B

B
B and C

C
C and D

D
A and K

Solution

Poultry animals generally suffer from night blindness (deficiency of vitamin A) and haemorrhage (deficiency of vitamin K). So the poultry feed is kept rich in these vitamins.
Question 8
1 / -0

Given below are statements about the harmful effects of weeds on crop plants.

(i) They interfere in harvesting.
(ii) They help crop plants to grow in a healthy way.
(iii) They compete with crop plants for water, nutrients, space and light.
(iv) They affect plant growth.

Choose the correct statement(s).

A
(i), (ii), (iii) and (iv)

B
(iii) only

C
(iii) and (iv)

D
(i), (iii) and (iv)

Solution

Weeds compete for food, space and light with the main crop.
Weeds germinate and grow faster, flower early, mature early than the cultivated crop.
Thus, weeds take up all the nutrients from soil, leaving the main crop weak, resulting in low yield.
Question 9
1 / -0

What is the crossing between two species of the same genus called?

A
Intravarietal hybridisation

B
Intergeneric hybridisation

C
Intrageneric hybridisation

D
Intervarietal hybridisation

Solution

Intrageneric hybridisation involves crosses between two individuals of different species belonging to the same genera. It is used to produce resistant varieties from diseases, frost or drought.

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Re-Attempt Weekly Quiz Competition

Improvement in Food Resources Test - 2

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Improvement in Food Resources Test - 2

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Question 1

Polyploidy

Induced mutation

Intervarietal hybridisation

Genetic modification

Solution

Question 2

Manure

Bio-fertiliser

Resistant varieties

All of these

Solution

Question 3

Broiler chickens are fed with vitamin rich supplementary feed

Egg-layers are fed with protein rich feed with adequate fat.

Appropriate vaccination can prevent the occurrence of infectious diseases.

Nutritional deficiency can lead to diseases in the poultry fowl.

Solution

Question 4

Only a

Only a and b

Only c

Only b and c

Solution

Question 5

Aseel

Busra

White leghorn

Chittagong

Solution

Question 6

Cowpox

Foot-and-mouth disease

Rabies

Dermatitis

Solution

Question 7

A and B

B and C

C and D

A and K

Solution

Question 8

(i), (ii), (iii) and (iv)

(iii) only

(iii) and (iv)

(i), (iii) and (iv)

Solution

Question 9

Intravarietal hybridisation

Intergeneric hybridisation

Intrageneric hybridisation

Intervarietal hybridisation

Solution

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