In the context of agriculture, one option for increasing food production is ________ agriculture, which relies on the use of agro-chemicals.

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

• organic
• conventional
• agro-chemical based
• genetically engineered
Correct Option: C  [ agro-chemical based ]

Remark: Agro-chemical based agriculture is one option for increasing food production.

The meristem (apical and axillary) is typically free of the virus, allowing for the ________ of healthy plants from diseased ones.

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

• grafting
• recovery
• mutation
• hybridization
Correct Option: B  [ recovery ]

Remark: The culture of meristem leads to the recovery of healthy plants.

Genetic modification has enhanced the nutritional value of food, such as golden rice, which is enriched with ________.

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

• Vitamin D
• Vitamin K
• Vitamin A
• Vitamin B
Correct Option: C  [ Vitamin A ]

Remark: Golden rice is Vitamin ‘A’ enriched rice.

The specific Bt toxin genes that control cotton bollworms are cryIAc and ________.

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

• cryIAb
• cryIIAb
• cryIAd
• cryIIAc
Correct Option: B  [ cryIIAb ]

Remark: The proteins encoded by cryIAc and cryIIAb control cotton bollworms.

The nematode that infects the roots of tobacco plants and reduces yield is ________ incognitia.

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

• Ascaris
• Meloidegyne
• Caenorhabditis
• Trichinella
Correct Option: B  [ Meloidegyne ]

Remark: The nematode is Meloidegyne incognitia.

In the first clinical gene therapy for ADA deficiency, lymphocytes were grown in a culture ________ the body.

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

• in vivo
• in vitro
• in media
• in serum
Correct Option: B  [ in vitro ]

Remark: Lymphocytes were grown in a culture outside the body (in vitro).

The use of transgenic animals to study human diseases makes investigation of new ________ possible.

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

• vaccines
• cures
• treatments
• diagnostics
Correct Option: C  [ treatments ]

Remark: Transgenic models make investigation of new treatments for diseases possible.

Transgenic models exist for the neurological disease ________.

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

• Parkinson's
• Epilepsy
• Alzheimer’s
• Multiple Sclerosis
Correct Option: C  [ Alzheimer’s ]

Remark: Alzheimer’s is listed as a disease for which transgenic models exist.

The ethical issue of patents being granted for products using genetic materials developed by indigenous people is fueled by growing public ________.

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

• support
• anger
• acceptance
• funding
Correct Option: B  [ anger ]

Remark: There is growing public anger regarding such patents.

Traditional knowledge related to bio-resources can save ________ and effort during commercialisation.

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

• profit
• time
• resources
• energy
Correct Option: B  [ time ]

Remark: Traditional knowledge saves time, effort and expenditure.