Application in Agriculture

Q.

The technique used in the production of Flavr Savr tomato is ___.

Q.

Compare and contrast the advantages and disadvantages of production of genetically modified (GM) crops.

Q.

What is integrated organic farming? How did Ramesh Chandra Dagar, a farmer from Sonepat, Haryana effectively used this procedure and succeed with zero waste? [5 mark]

Q.

Describe the role of chemistry in agriculture?

Q. Atlas 66 is a ____________.

1. protein rich wheat variety
2. protein rich maize variety
3. vitamin A rich rice variety
4. sucrose rich sugarcane variety

Q. Name any two disease the 'Himgiri' variety of wheat is resistant to.

Q. What are transgenic animals. Give an example. [1]

Q.

What Is Norin-10 Gene?

Q.

The introduction of t-DNA into plants involves

1. Exposing the plants to cold for a brief period

2. Infection of the plant by Agrobacterium tumefaciens

3. Allowing the plant roots to stand in water

4. Altering the pH of the soil, then heat-shocking the plants

Q. Which of the following statement is not applicable to GM plants?

1. Reduced reliance on chemical pesticides
2. Prevent early exhaustion of fertility of soil
3. Crops less tolerant to abiotic stress
4. Enhanced nutritional value of food

Q.

Give different types of cry genes and pests which are controlled by the proteins encoded by the genes.

Q.

Mention any 4 symptoms seen in plants due to diseases caused by viruses?

Q. Match column I with column II and choose the correct option.
$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{(a)}& \text{ELISA}& \text{(i)}& \text{Single stranded DNA or RNA,}\\ & & & \text{tagged with a radioactive molecule}\\ \text{(b)}& \text{Probe}& \text{(ii)}& \text{Antigen-antibody}\\ & & & \text{interaction}\\ \text{(c)}& \text{Pest resistant plants}& \text{(iii)}& \text{Functional ADA}\text{cDNA}\\ \text{(d)}& \text{Gene therapy}& \text{(iv)}& \text{RNA interference}\end{array}$

1. (a) (b) (c) (d)
   (i) (ii) (iii) (iv)
2. (a) (b) (c) (d)
   (ii) (i) (iv) (iii)
3. (a) (b) (c) (d)
   (i) (iv) (iii) (ii)
4. (a) (b) (c) (d)
   (iv) (iii) (ii) (i)

Q. If the DNA of a virus is labelled with ${}^{32}P$ and the protein of the virus is labelled with ${}^{35}S,$ after transduction which molecules would be present inside the bacterial cells?

1. ${}^{32}P$ only
2. ${}^{35}S$ only
3. Both ${}^{35}Sand{}^{32}P$
4. Neither molecule would be present inside the cell

Q.

Name the vitamins that are high in poultry feed.

Q. Match column-I with column-II and identify the correct option.
$\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ \text{A.}& \text{Gene therapy}& \text{I.}& \text{Rhizobium}\\ \text{B.}& \text{Biofertilizer}& \text{II.}& \text{Cry gene}\\ \text{C.}& \text{Bt cotton}& \text{III.}& \text{SCID}\\ \text{D.}& \text{Humulin}& \text{IV.}& \text{Diabetes}\end{array}$

1. A – II; B – I; C – IV; D – III
2. A – III; B – I; C – II; D – IV
3. A – II; B – III; C – I; D – IV
4. A – IV; B – I; C – II; D – III

Q. Choose the correct statement among the following :-
(I) Spirulina as single cell protein can serve as rich protein food
(II) Pomato, new hybrid plant formed by somatic hybridisation is the most successful hybrid for commercial utilisation.
(III) We can use even sewage to produce large quantities of spirulina.
(IV) Iron fortified rice variety has been developed which contains over 5 times as much iron in common varieties.

1. I and II are correct, I and IV are wrong
2. I, II and IV are correct and only III is wrong
3. I, II and III are wrong, only IV is correct
4. All of these are correct

Q.

Golden rice is a genetically modified crop plant where the incorporated gene is meant for the biosynthesis of?

1. Vitamin A

2. Vitamin B

3. Vitamin C

4. Omega 3

Q. More than three billion people suffer from micronutrient deficiency or hidden hunger, because they cannot afford variety of fruits, vegetables, legumes, fish and meat.

Which of the following could be the possible effects of hidden hunger in people?

I. Increased risk for diseases.
II. Reduced lifespan.
III. Reduced mental abilities.

1. Only I and II
2. Only II and III
3. Only I and III
4. I, II and III

Q.

What do you mean by biofertilizers?

Q.

Name one nitrogen fertilizer.

Q.

How are transgenic plants helpful to humans?

Q. Silencing of mRNA/RNA interference has been used in development of plants resistant to:

1. Viruses
2. Insects
3. Fungi
4. Nematodes

Q. Write the most important characteristic that Aspergillus niger, Clostridium butylicum, and Lactobacillus share.

Q.

One Gene-one enzyme relationship was established for the first time in?

1. Escherichia Coli

2. Neurospora crassa

3. Diplococcus pneumoniae

4. Salmonella typhimurium

Q. Transgenic animals are produced by inserting foreign genes into the __________.

1. embryonic cells
2. pronucleus of the gamete
3. cytoplasm of the sperm
4. both a and b

Q. Golden rice is enriched with

1. Vitamin K
2. Vitamin B
3. Vitamin C
4. Vitamin A

Q. Meloidegyne incognitia infects which part of the tobacco plant?

1. Stem
2. Root
3. Leaves
4. All parts of the plant

Q. Which of the following option is wrong with respect to somatic hybridisation?

1. It is fusion of two plant cells belonging to two different varieties, species or even genera
2. Pomato is the intergeneric hybrid of potato and brinjal
3. The protoplast of two cells can be fused by electrofusion
4. Pomato is not commercially viable

Q. Assertion: The technique of micropropagation has been used to introduce variations in the offspring.

Reason: It is not possible to generate virus-free plants by micropropagation.

1. Both assertion and reason are true and reason is the correct
   explanation of assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Both assertion and reason are false
4. Assertion is true but reason is false