class 12 science biology important questions

Somansh

Asked: October 15, 2021In: Class 12 Biology

Name the five key tools for accomplishing the tasks of recombinant DNA technology. Also mention the functions of each tool.

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Shikha Avasti

Asked: October 15, 2021In: Class 12 Biology

What is hybrid vehicle technology. Explain the advantages with a suitable example?

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Gautam Dutta

Asked: October 14, 2021In: Class 12 Biology

Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton resistant to other pests as well?

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Ragni

Asked: October 12, 2021In: Class 12 Biology

A mixture of fragmented DNA was electrophoresed in agarose gel. After staining the gel with ethidium bromide, no DNA bands were observed. What could be the reason?

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Vaishnavi Rai

Asked: October 12, 2021In: Class 12 Biology

A wine maker and a molecular biologist who has developed a recombinant vaccine, both claim themselves to be biotechnologist. Who in your opinion is right?

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Shilpa

Asked: October 12, 2021In: Class 12 Biology

How was penicillin discovered?

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