Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Biotechnology and Its Applications

Multiple Choice Questions

71. Golden rice is a transgenic crop of the future with the following improved trait:

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

417 Views

72.

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

243 Views

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

CryIAc
CryIIAb
Both (A) and (B)
CryIIAb

114 Views

74. The protein encoded by which gene control corn borer

CryIAc
CryIIAb
CryIAb
CryIIAc

149 Views

Long Answer Type

75.

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

122 Views

Short Answer Type

76.
Mention the type of host cells suitable for the gene guns to introduce an alien DNA.

Plant cells are considered suitable for the gene guns to introduce an alien DNA.

736 Views

77.

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

455 Views

78.

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

522 Views

79.

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

578 Views

80.

What is Biopiracy?

943 Views