ભારતમાં નીચે પૈકી કયા \(Bt\) પાકો ખેડૂતો દ્વારા ઉછેરવામાં આવે છે ?

A રીંગણ
B સોયાબીન
C મકાઈ
D કપાસ

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Answer & Solution

Correct Answer

(D) કપાસ

Step-by-step Solution

Detailed explanation

(d) : \(Bt\) toxin genes were isolated from Bacillus thuringiensis and incorporated into the several crop plants such as cotton. The choice of genes depends upon the crop and targeted pest, as most \(Bt\) toxins are insectgroup specific. The toxin is coded by a gene named cry. These are numerous genes. Two cry genes cry \(I\ Ac\) and cry \(II\ Ab\) have been incorporated in cotton. The genetically modified crop is called \(Bt\) cotton as it contains \(Bt\) toxin genes against cotton bollworms.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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સ્તંભ \(I\) માંના તત્વને સ્તંભ \(II\) સાથે જોડો.

સ્તંભ \(I\)	સ્તંભ \(II\)
\((a)\) કોપર	\((i)\) અધાતુ
\((b)\) ફ્લોરિન	\((ii)\) સંક્રાંતિ ધાતુ
\((c)\) સિલિકોન	\((iii)\) લેન્થનોઇડ
\((d)\) સિરિયમ	\((iv)\) અર્ધધાતુ

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NEET 2020 Easy

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