Transgenic mice are being used for testing the safety of ________ before they are used on humans.

[Biotechnology-and-its-Applications] [class-xii ]

• antibiotics
• vaccines
• hormones
• vitamins
Correct Option: B  [ vaccines ]

Remark: Transgenic mice are being developed for use in testing the safety of vaccines.

There is growing public anger that patents are being granted for products using genetic materials identified and used by farmers and ________ people of a specific region.

[Biotechnology-and-its-Applications] [class-xii ]

• wealthy
• indigenous
• international
• academic
Correct Option: B  [ indigenous ]

Remark: Patents on products using materials developed by farmers and indigenous people generate public anger.

The term biopiracy specifically refers to the use of ________.

[Biotechnology-and-its-Applications] [class-xii ]

• agricultural land
• bio-resources
• chemical compounds
• industrial enzymes
Correct Option: B  [ bio-resources ]

Remark: Biopiracy refers to the use of bio-resources without proper authorisation.

Traditional knowledge related to bio-resources can be exploited to develop ________ applications.

[Biotechnology-and-its-Applications] [class-xii ]

• conventional
• traditional
• modern
• historical
Correct Option: C  [ modern ]

Remark: Traditional knowledge can be exploited to develop modern applications.

The Indian Parliament cleared the second amendment of the Indian Patents Bill, which takes into consideration issues of patent terms and emergency ________.

[Biotechnology-and-its-Applications] [class-xii ]

• funding
• provisions
• research
• regulations
Correct Option: B  [ provisions ]

Remark: The amendment considers patent terms of emergency provisions, research, and development initiatives.

One major application of biotechnology in agriculture is the production of ________ plants, which decreases pesticide use.

[Biotechnology-and-its-Applications] [class-xii ]

• drought-resistant
• salt-tolerant
• pest resistant
• vitamin enriched
Correct Option: C  [ pest resistant ]

Remark: A detailed application is the production of pest resistant plants.

A drawback of agrochemicals is that they are often too ________ for farmers in the developing world.

[Biotechnology-and-its-Applications] [class-xii ]

• ineffective
• expensive
• toxic
• unavailable
Correct Option: B  [ expensive ]

Remark: Agrochemicals are often too expensive for farmers in the developing world.

The two types of growth regulators mentioned as components of the nutrient medium for explants are auxins and ________.

[Biotechnology-and-its-Applications] [class-xii ]

• hormones
• vitamins
• cytokinins
• amino acids
Correct Option: C  [ cytokinins ]

Remark: Auxins and cytokinins are the required growth regulators.

The process of somatic hybridisation uses naked protoplasts, which are isolated after digesting the plant cell’s ________.

[Biotechnology-and-its-Applications] [class-xii ]

• nucleus
• cytoplasm
• cell wall
• membrane
Correct Option: C  [ cell wall ]

Remark: Protoplasts are isolated after digesting their cell walls.

The Bt toxin proteins kill insects by causing cell swelling and lysis, eventually causing ________ of the insect.

[Biotechnology-and-its-Applications] [class-xii ]

• starvation
• paralysis
• death
• mutation
Correct Option: C  [ death ]

Remark: Cell lysis eventually causes the death of the insect.