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Cultivation of Bt cotton has been much i...

Cultivation of Bt cotton has been much in the news. The prefix Bt means

A

barium-treated cotton seeds

B

bigger thread variety of cotton with better tensile strength

C

produced by biotechnology using restriction enzymes and ligases

D

carrying an endotoxin gene from Bacillus thuringiensis

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The correct Answer is:
D
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Bt-cotton is not :

Development of Bt cotton has reduced the use of insecticides . Justify.

Bt-cotton is resistant to:

Development of Bt cotton has reduced the use of insecticides. Justify.Write a note on gene therapy.

One of the applications of biotechnology is the production of insect resistant crop plants." Justify the statement with reference to Bt-cotton.

A natural occurring class of plant hormones cytokinins has been found to help increase cotton yields during drought conditions. It has been observed that young cotton seedlings have small root system, making it difficult for them to reach available soil water. Cytokinins assists the young plants in water stress defences, promoting the plant to quickly build a bigger root system to access deep soil mosture. To be effective this phytohormone should be at an early stage of development. Which hormone is synthesized at the shoot - tip of plant body ?

A natural occurring class of plant hormones cytokinins has been found to help increase cotton yields during drought conditions. It has been observed that young cotton seedlings have small root system, making it difficult for them to reach available soil water. Cytokinins assists the young plants in water stress defenses, promoting the plant to quickly build a bigger root system to access deep soil moisture. To be effective this phytohormone should be at an early stage of development. What are phytohormones ?

A natural occurring class of plant hormones cytokinins has been found to help increase cotton yields during drought conditions. It has been observed that young cotton seedlings have small root system, making it difficult for them to reach available soil water. Cytokinins assists the young plants in water stress defences, promoting the plant to quickly build a bigger root system to access deep soil mosture. To be effective this phytohormone should be at an early stage of development. "Plant hormones help to co - ordinate growth." Justify the statement by giving three examples.

Insectical use has been reduced in BT crops. Why?

TRUEMAN BIOLOGY-APPLICATION OF BIOTECHNOLOGY -Multiple Choice Questions
  1. DNA is acidic due to

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  2. Genetic material of retroviruses is

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  3. Cultivation of Bt cotton has been much in the news. The prefix Bt mean...

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  4. Golden rice is a transgenic crop of the future with which of the follo...

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  5. Human insulin is being commercially produced from a transgenic species...

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  6. The construction of the first recombinant DNA was done by using the na...

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  7. A drug obtained through genetic engineering and useful for treating in...

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  8. The bacterium Bacillus thuringiensis is widely used in contemporary bi...

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  9. The genetic defect-Adenosine Deaminase deficiency may be cured permane...

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  10. What is true about Bt toxin?

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  11. Blood stains are found at the site of a murder. If DNA profiling techn...

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  12. Some of the characteristics of Bt cotton are

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  13. An improved variety of transgenic basmati rice

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  14. Which of the following is a transgenic plant?

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  15. The problem of blindness in poor countries can be taken care of by usi...

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  16. Alec Jeffreys developed the DNA fingerprinting technique. The probe he...

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  17. Which of the following is correctly matched ?

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  18. Maximum number of existing transgenic animals is of

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  19. Bacillus thuringiensis forms protein crystals which contain insecticid...

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  20. Silencing of mRNA has been used in producing transgenic plants resista...

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