• Insect resistance
• High lysine (essential amino acid) content
• High protein content
• High vitamin-A content

Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because

• bacteria are resistant to the toxin
• toxin is immature
•  toxin is inactive
• bacteria encloses toxin in a special sac

73. The protein encoded in which gene control boll worm.

• CryIAc
• CryIIAb
• Both (A) and (B)
• CryIIAb

• CryIAc
• CryIIAb
• CryIAb
• CryIIAc

Digrammatically represent the experimental steps in cloning and expressing an human gene (say the gene for growth hormone) into a bacterium like E. coli?

Mention the type of host cells suitable for the gene guns to introduce an alien DNA.

State how Agrobacterium tumifaciens has been made a useful cloning vector to transfer DNA to plant cells.

How are 'sticky ends' formed on a DNA strand? Why are they so called?

How did the process of RNA interference help to control the nematode from infecting the roots of tobacco plants?

What is Biopiracy?