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Biotechnology and Its Applications
Question
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Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).

  • Both sense and anti-sense RNA

  • A particular hormone

  • An antifeedant

  • A toxic protein

Answer

A.

Both sense and anti-sense RNA

Antisense RNA can be produced by inverting a cDNA copy of an mRNA with respect to the promoter in an expression vector. This yields a full length complementary copy of mRNA sequence. Antisense RNA molecule are thought to interact with mRNA molecule by base pairing to form double stranded RNA.

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Some More Questions From Biotechnology and Its Applications Chapter

Name two diseases that can be treated by producing biological compound in transgenic animal.

Name the first transgenic cow.

Name the toxin produced by Bacillus thuringiensis.

What is the utility of Bt-Toxin gene ?

Bt-toxin protein exist in which form ?

How is inactive Bt-toxin converted into active form ?

How Bt toxin causes death of insect ?

Name a few forms of cry gene.

List the specific insects killed by (i) cryIAc and (ii) cryIAb.

Name the insect killed by proteins coded by cryIIAb and cry IAc.