Biotechnology and its Applications Chapter-Wise Test 13

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which genetically modified plant is used to produce vitamin A-enriched food?

Bt cotton
Golden rice
Hybrid maize
Pomato
2

Golden rice is genetically modified to produce beta-carotene, which is converted to vitamin A in the human body.

Which molecular tool is used to separate DNA fragments based on size during genetic analysis?

PCR
ELISA
Gel electrophoresis
Northern blotting
3

Gel electrophoresis is used to separate DNA fragments based on size by applying an electric field.

Which molecular tool is used to separate DNA fragments based on size?

PCR
ELISA
Gel electrophoresis
Northern blotting
3

Gel electrophoresis is used to separate DNA fragments based on size by applying an electric field.

Which Indian law protects biodiversity and prevents biopiracy?

Environment Protection Act
Biodiversity Act
Indian Patents Act
Forest Conservation Act
2

The Biodiversity Act in India protects biodiversity and prevents biopiracy by regulating the use of biological resources.

Which of the following is incorrect about Bt cotton?

Bt cotton is genetically modified to produce Cry proteins.
Bt cotton is resistant to insect pests like bollworms.
Bt cotton improves the nutritional value of cotton seeds.
Bt cotton reduces the need for chemical pesticides.
3

Bacillus thuringiensis (Bt) cotton provides pest resistance but does not improve the nutritional value of cotton seeds.

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

Tissue culture can regenerate whole plants from a single cell.
Tissue culture produces genetically identical plants.
Tissue culture is limited to flowering plants only.
Tissue culture is performed under sterile conditions.
3

Tissue culture is not limited to flowering plants; it is used for a wide variety of plant species.

Which nutrient medium component is essential for providing amino acids during tissue culture?

Sucrose
Inorganic salts
Vitamins
Amino acid supplements
4

Amino acid supplements in the nutrient medium provide essential amino acids required for plant cell growth.

Which of the following is correct about molecular diagnostics?

Molecular diagnostics rely only on microscopy.
PCR is a technique used in molecular diagnostics.
Molecular diagnostics cannot detect genetic mutations.
ELISA is unrelated to molecular diagnostics.
2

PCR is a widely used technique in molecular diagnostics for detecting genetic material and diagnosing diseases.

Which vector is commonly used in plant genetic engineering for gene transfer?

Plasmid pBR322
Ti plasmid
Lambda phage
Cosmid
2

Ti plasmid from Agrobacterium tumefaciens is commonly used in plant genetic engineering for gene transfer.

Which organism is used to produce human insulin through genetic engineering?

Bacillus thuringiensis
Escherichia coli
Saccharomyces cerevisiae
Rhizobium
2

Escherichia coli is genetically modified to produce human insulin using recombinant DNA technology.

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