Biotechnology and its Applications Chapter-Wise Test 6

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which term refers to genetically modified animals used to study human diseases?

Hybrid animals
Transgenic animals
Cloned animals
Germline mutants
2

Transgenic animals are genetically modified to study human diseases and test new treatments.

Which regulatory body in India is responsible for the approval of genetically modified organisms?

ICMR
DBT
GEAC
CSIR
3

The Genetic Engineering Approval Committee (GEAC) is responsible for the approval and regulation of GMOs in India.

Which of the following is correct about Agrobacterium tumefaciens?

Agrobacterium tumefaciens is used to produce antibiotics.
Agrobacterium tumefaciens is used as a vector for gene transfer in plants.
Agrobacterium tumefaciens is a virus used in animal genetic engineering.
Agrobacterium tumefaciens is used for producing insulin in bacteria.
2

Agrobacterium tumefaciens is a bacterium used as a vector for transferring genes into plants through its Ti plasmid.

Which of the following is correct about somatic hybridization?

Somatic hybridization involves the fusion of whole plant cells.
Somatic hybridization is a type of sexual reproduction.
Somatic hybridization involves fusion of protoplasts from different species.
Somatic hybridization is used only for animal cells.
3

Somatic hybridization involves the fusion of protoplasts from different plant species to form hybrid plants with combined traits.

Which plant was used to demonstrate RNA interference for pest resistance?

Tomato
Tobacco
Potato
Rice
2

RNA interference was demonstrated in tobacco plants to provide resistance against nematode infestation.

Which biotechnological method helps recover virus-free plants from diseased ones?

Cryopreservation
Gene editing
Meristem culture
Somatic hybridization
3

Meristem culture is used to recover virus-free plants from diseased plants.

Which of the following is incorrect about tissue culture in plants?

Tissue culture produces genetically identical plants.
Tissue culture is used for micropropagation.
Tissue culture requires sterile conditions.
Tissue culture produces genetically diverse plants.
4

Tissue culture produces genetically identical plants, not genetically diverse ones.

Which plant tissue culture technique is used for large-scale plant propagation?

Somatic hybridization
Micropropagation
Callus culture
Protoplast fusion
2

Micropropagation is used for large-scale production of genetically identical plants.

Which method uses high voltage to create temporary pores in cell membranes for DNA entry?

Microinjection
Gene gun
Electroporation
Lipofection
3

Electroporation uses high voltage to create temporary pores in cell membranes, allowing DNA to enter the cells.

Which of the following is correct about gene cloning?

Gene cloning produces genetically different copies of genes.
Gene cloning is unrelated to recombinant DNA technology.
Gene cloning produces identical copies of a gene.
Gene cloning prevents DNA replication in cells.
3

Gene cloning is a process used to produce identical copies of a specific gene through recombinant DNA technology.

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