Bt. Cotton

Q.

Which is Indias first transgenic crop?

Q. Some of the characteristics of Bt cotton are

1. long fibre and resistance to aphids
2. medium yield, long fibre and resistance to beetle pests
3. high yield and production of toxic protein crystals which kill dipteran pests
4. high yield and resistance to bollworms

Q. Which of the following crop was first introduced as a GM crop?

1. Bt cotton
2. Rice
3. Tomato
4. Bt brinjal

Q. Some of the characteristics of Bt cotton are:

1. Long fiber and resistance to aphids
2. Medium yield, long fiber and resistance to beetle pests.
3. High yield and resistance to bollworms
4. High yield and production of toxic protein crystals which kill dipteran pests

Q. The first genetically modified plant commercially released India is

1. Golden rice
2. Slow ripening tomato
3. Bt brinjal
4. Bt cotton

Q.

Bacillus thuringiensis is used as ____________ .

1. Biofungicide

2. Biopesticide

3. Biocontroller

4. Bioweapon

Q. Regarding the assertion and reason, choose the correct option
Assertion[A]: Bt cotton became a commercial success.
Reason[R]: Bt cotton's endotoxins acted against sucking pests like jassids, aphids and whitefly.

1. Both A and R are true and R explains A
2. Both A and Q are true R does not explain A
3. A is true and R is false
4. Both A and R are false

Q.

Bt cotton is resistant to

1. Insect pest

2. Herbicides

3. Salt

4. Drought

Q.

"Bt cotton" is resistant to:

1. Salt

2. Drought

3. Herbicides

4. Insects

Q. Cultivation of Bt cotton has been much in the news. The prefix Bt stands for

1. barium-treated cotton seeds
2. bigger thread variety of cotton with better tensile strength
3. produced by biotechnology using restriction enzymes and ligases
4. carrying an endotoxin gene from Bacillus thuringiensis

Q. Bacillus thuringiensis is a

1. Bacterium
2. Bio fertilizer
3. Bioherbicide
4. None of the above

Q. Cotton of commerce is obtained from

1. Root hairs on Salmalia
2. Trichomes on seed coat of Gossypium
3. Root hairs on Gossypium
4. Bast of Gossypium
5. Bast of Salmalia

Q. Question 20
What is a GM crop? Name any one such crop which is grown in India.

Q. Which of the following Bt crops is being grown in India by the farmers?

1. Soybean
2. Maize
3. Cotton
4. Ground gram

Q. Insect resistance transgenic cotton has been produced by inserting a piece of DNA from:

1. A virus
2. A bacterium
3. A wild relative of cotton
4. An insect

Q. Bacillus thuringiensis is a

1. Bacterium
2. None of the above
3. Bioherbicide
4. Bio fertilizer

Q. Bt in Bt cotton stands for:

1. Biotechnology
2. Bollworm toxin
3. Bacterial tolerant
4. Bacillus thuringiensis

Q.

"Cry" genes or "Bt" genes are obtained from

1. Tobacco plant

2. Cotton pest

3. E. coli

4. Bacillus thuringiensis