Genetically Modified Organisms

Q. Explain the meaning of biotechnology and its impact on agricultural management with suitable examples. <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> [Textbook Question No.6 Pg no. 208]

Q. Which among the following is a genetically modified variety of soybean?

1. 
   Amflora
2. 
   Vistive Gold
3. 
   MON 810
4. 
   Vaishali

Q. Crossing between different varieties is called hybridisation.

1. interspecific
2. intervarietal
3. intergeneric

Q.

State the role of vitamin K in the body

Q.

Jaya and Ratna are semidwarf varieties of __________.

Q. are commercially produced plant nutrients.

1. Fertilisers
2. Pesticides
3. Insecticides

Q.

Discuss the role of chemistry in agriculture.

Q.

What are the merits of biotechnology?

Q. Match the following:
$\begin{array}{cc}\text{i. Maize}& \text{a. Amflora}\\ \text{ii. Rice}& \text{b. Vaishali}\\ \text{iii. Tomato}& \text{c. Golden Rice}\\ \text{iv. Potato}& \text{d. MON 810}\end{array}$

1. i-d, ii-c, iii-b, iv-a
2. i-a, ii-b, iii-c, iv-d
3. i-b, ii-c, iii-a, iv-d
4. i-c, ii-a, iii-b, iv-d

Q. _______________ crops are plants used in agriculture, the DNA of which has been modified using recombinant DNA technology methods.

1. Rabi
2. Genetically modified
3. Cover
4. Mixed

Q. Genetically modified plants are produced by modifying the DNA of a plant, thus giving it new characteristics.

1. True
2. False

Q. Explain the meaning of biotechnology and its impact on agricultural management with suitable examples.

Q. is a genetically modified plant.

1. Bt. cotton
2. IR8
3. Triticale

Q. Crop variety improvement is done to achieve higher yield, improved quality and disease resistance.

1. True
2. False

Q.

The method used to obtain plant varieties with high yield and other desirable characters is:

1. hybridisation

2. budding

3. selection

4. reduction

Q. Select the characteristics that farmers desire in a crop.

1. High yield
2. Fast fruiting
3. Pest resistance
4. Salt tolerance
5. Heat resistance
6. Low productivity
7. Pest susceptible
8. Slow flowering

Q. Scientists develop crop varieties by hybridisation of two different crops. Which of the following hybridisation is/are possible?

1. Inter-varietal
2. Inter-specific
3. Inter-generic
4. Random

Q. Purposeful manipulation of qualities in plants to create new varieties with desired characteristics is called plant breeding.

1. False
2. True