Please select a subject first
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Write a short note on ‘Mutational breeding’.
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Name the high-yielding semi-dwarf varieties of wheat selected and introduced in India in 1963.
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Give reason :
Emasculation is done in a flower which is selected as female parent.
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What is ‘biofortification’?
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Which steps would you follow to develop a new variety of crop plant by selective breeding?
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What is plant breeding?
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Name the genes responsible for making Bt cotton plants resistant to bollworm attack. How do such plants attain resistance against bollworm attacks? Explain.
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In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
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Give an example of the source of thermostable enzyme DNA polymerase.
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Vijaya, Padma, Kanti and Jayanti are high-yielding varieties of ______.
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Give the names of ‘two’ insect-resistant crop varieties.
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What is emasculation?
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What are transgenic plants? Explain with any two examples
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With the help of suitable diagram define 'bagging' and 'tagging' of flower.
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Define Osmotic pressure.
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What is Biofortification? Explain selective breeding with suitable example.
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Answer each question in ‘One’ sentence only:
Define stock and scion.
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The biological scissor is ______.
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Give the applications of the PCR technique.
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