Match the organism with its use in biotechnology.

NEET-(Sept)2020 [Biotechnology-and-its-applications] [class-xii ]

• (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
• (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
• (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
• (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
Correct Option: B  [ (A)-(IV), (B)-(III), (C)-(I), (D)-(II) ]

Remark:

Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to:

NEET-(Sept)2020 [Biotechnology-and-its-applications] [class-xii ]

• Insect pests
• Fungal diseases
• Plant nematodes
• Insect predators
Correct Option: A  [ Insect pests ]

Remark:

Which of the following statements is not correct?

NEET-(Sept)2020 [Biotechnology-and-its-applications] [class-xii ]

• In man insulin is synthesised as a proinsulin.
• The proinsulin has an extra peptide called C-peptide.
• The functional insulin has A and B chains linked together by hydrogen bonds.
• Genetically engineered insulin is produced in E-Coli.
Correct Option: C  [ The functional insulin has A and B chains linked together by hydrogen bonds. ]

Remark:

RNA interference is used for which of the following purposes in the field of biotechnology?

NEET-(Oct)2020 [Biotechnology-and-its-applications] [class-xii ]

• to develop a plant tolerant to abiotic stresses
• to develop a pest resistant plant against infestation by nematode
• to enhance the mineral usage by the plant
• to reduce post harvest losses
Correct Option: B  [ to develop a pest resistant plant against infestation by nematode ]

Remark:

The laws and rules to prevent unauthorised exploitation of bio-resources are termed as:

NEET-(Oct)2020 [Biotechnology-and-its-applications] [class-xii ]

• Biopatenting
• Bioethics
• Bioengineering
• Biopiracy
Correct Option: A  [ Biopatenting ]

Remark:

Which of the following in true for Golden rice?

NEET-2019 [Biotechnology-and-its-applications] [class-xii ]

• It has yellow grains, because of a gene introduced from a primitive variety of rice
• It is drought tolerant, developed using Agrobacterium vector
• It is pest resistant, with a gene from Bacillus thuringiensis
• It is Vitamin A enriched, with a gene from daffodil
Correct Option: D  [ It is Vitamin A enriched, with a gene from daffodil ]

Remark: