Strategies for Enhancement in Food Production Test

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Strategies for Enhancement in Food Production Test - 64

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is incorrectly paired?

A
Wheat - Himgiri

B
Milch - Sahiwal

C
Rice - Ratna

D
Pusa Komal - Brassica

Solution

Pusa Komal is a variety of cowpea (Vigna unguiculata). Developed by IARI, New Delhi and is resistant to bacterial blight diseases. It belongs to family Fabaceae.
So, the correct answer is 'Pusa Komal - Brassica'
Question 2
1 / -0

Black rust of wheat is caused by

A
Puccinia

B
Albugo

C
Ustilago

D
Cystopus
Solution
Correct Option: A
Explanation:
Black rust is a fungal disease that mostly infects the winter wheat.
It causes small brown pustules on the leaf blades and develops patches if the plant gets severely affected.
The wheat rust is majorly caused by the genus called Puccinia.
Puccinia requires a moist climate to grow.
Hence, black rust of wheat is caused by Puccinia.
Question 3
1 / -0

Maize generates resistance against stem borers by having ___________________.

A
Low aspartic acid, high nitrogen and sugar content

B
Low aspartic acid, sugar but high nitrogen content

C
Low aspartic acid, nitrogen but low sugar content

D
High aspartic acid, sugar content and low nitrogen
Question 4
1 / -0

Which of the following statements is correct regarding nectarless cotton varieties?

A
They do not attract stem sawfly

B
They are produced by mutation breeding

C
They do not attract bollworms

D
They attract cereal leaf beetle.
Question 5
1 / -0

Which of the following statement is/are not correct for single cell protein (SCP)?
(i) The biomass is obtained from unicellular microorganisms only.
(ii) It provides a protein rich supplement.
(iii) They can be grown easily on materials like waste water from potato processing plants, straw, manure, sewage etc.
(iv) It helps to minimise environmental pollution.
(v) SCP has to be processed before use.

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

B
(iii) only

C
(iv) only

D
(i) only

Solution

i) SCP can be produced from algae, bacteria, filamentous fungi and yeast. Out of these, some are multicellular.
ii) It provides food rich in quality proteins and low carbohydrates.
iii) Microbes like Spirulina can be grown easily on materials like waste water from potato processing plant, straw, molasses, and even on sewage.
iv) Growing these microbes on waste material and incidentally, such utilization also reduces environmental pollution.
v) SCP has to be processed before use to remove excess amount of nucleic acid present in them.
Thus the correct answer is 'i'.
Question 6
1 / -0

250 g of $$Methylophilus$$ can be expected to produce ______ tonnes of proteins.

A
15

B
25

C
40

D
50

Solution

A 250 kg cow produces 200 g of proteins per day. In the same period, 250 g of a microorganisms like Methylophilus methylotrophus because of its high rate of biomass production and growth, can be expected to produce 25 tonnes of protein.
Question 7
1 / -0

An explant is:

A
Dead plant.

B
Part of the plant.

C
Part of the plant used in tissue culture.

D
Part of the plant that expresses a specific gene.
Solution
Correct option: C

Explanation:
An explant is a part of the plant used in tissue culture. A part of the plant is taken out and grown in special nutritive media under sterile conditions to generate a whole plant.
Thus, the correct option is 'Option C' .
Question 8
1 / -0

Use of certain chemicals and radiation to change the base sequence of genes of crop plants is termed as:

A
Recombinant DNA technology

B
Transgenic mechanism

C
Mutation breeding

D
Gene therapy
Solution
- Mutation breeding is the process of exposing seeds to certain chemicals and radiation in order to generate mutants with desirable traits to bred with other cultivators. This will change the base sequence of genes of crop plants. In mung bean, resistance to yellow mosaic virus and powdery mildew were induced by mutations.
- Recombinant DNA technology is the process of joining DNA molecules together from 2 different species that are inserted into a host organism to produce new genetic recombinations.
- Transgenic mechanism is the mechanism of random integration of foreign DNA in transgenic animals.
- Gene therapy is a therapeutic process of delivery of nucleic acid into a patient's cell as a drug to treat a disease.
So, the correct option is 'Option C' .
Question 9
1 / -0

Which of the following should be used as an explant to generate a disease free plant?

A
Anther

B
Ovary cell

C
Shoot tip

D
Young embryo

Solution

Although the plant is infected with a virus, the meristem (apical and axillary) is free of virus. Hence, one can remove the meristem (shoot tip) and grow it in vitro to obtain virus-free plants.
So, the correct option is option C.
Question 10
1 / -0

Which one of the following is not a fungal disease?

A
Rust of wheat

B
Smart of Bajra

C
Black rot of crucifers

D
Red rot of sugarcane

Solution

Black rot of Crucifers is not a fungal disease. it is a Bacterial Disease.

So, the correct answer is 'Black rot of crucifers'.

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Re-Attempt Weekly Quiz Competition

Strategies for Enhancement in Food Production Test - 64

Result

Strategies for Enhancement in Food Production Test - 64

Score

-

Rank

-

SHARING IS CARING

Question 1

Wheat - Himgiri

Milch - Sahiwal

Rice - Ratna

Pusa Komal - Brassica

Solution

Question 2

Puccinia

Albugo

Ustilago

Cystopus

Solution

Question 3

Low aspartic acid, high nitrogen and sugar content

Low aspartic acid, sugar but high nitrogen content

Low aspartic acid, nitrogen but low sugar content

High aspartic acid, sugar content and low nitrogen

Question 4

They do not attract stem sawfly

They are produced by mutation breeding

They do not attract bollworms

They attract cereal leaf beetle.

Question 5

(i), (iii) and (iv)

(iii) only

(iv) only

(i) only

Solution

Question 6

15

25

40

50

Solution

Question 7

Dead plant.

Part of the plant.

Part of the plant used in tissue culture.

Part of the plant that expresses a specific gene.

Solution

Question 8

Recombinant DNA technology

Transgenic mechanism

Mutation breeding

Gene therapy

Solution

Question 9

Anther

Ovary cell

Shoot tip

Young embryo

Solution

Question 10

Rust of wheat

Smart of Bajra

Black rot of crucifers

Red rot of sugarcane

Solution

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