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10.Biotechnology and its Application
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Some of the characteristics of $Bt$ cotton are
A
long fibre and resistance to aphids
B
medium yield, long fibre and resistance to beetle pests
C
high yield and production of toxic protein crystals which kill dipteran pests
D
high yield and resistance to bollworms.
(AIPMT-2010)
Solution
(d) : $Bt$ toxin genes were isolated from Bacillus thuringiensis and incorporated into cotton plant. The genetically modified crop is called $Bt$ cotton. $Bt$ cotton has the following useful characteristics: pest resistance, herbicide tolerance, high yield and resistance to bollworm infestation.
Standard 12
Biology
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