Biotechnology and its Applications Chapter-Wise Test 25

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which government body regulates the release of genetically modified organisms in India?

ICMR
GEAC
CSIR
DBT
2

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

Which of the following is incorrect about somatic hybridization?

Somatic hybridization involves fusion of protoplasts.
Somatic hybridization is a method of sexual reproduction.
Pomato is an example of somatic hybridization.
Protoplasts are used in somatic hybridization after cell wall removal.
2

Somatic hybridization is a method of asexual reproduction, not sexual reproduction.

Which enzyme is used to synthesize cDNA from an mRNA template?

DNA polymerase
Reverse transcriptase
Ligase
Restriction enzyme
2

Reverse transcriptase is used to synthesize complementary DNA (cDNA) from an mRNA template.

Which of the following is correct about Bt toxin?

Bt toxin is naturally produced by all plants.
Bt toxin is produced by Bacillus thuringiensis.
Bt toxin is used to enhance soil fertility.
Bt toxin degrades RNA in plant cells.
2

Bacillus thuringiensis produces Bt toxin, which is introduced into crops through genetic engineering for pest resistance.

Which of the following is correct about molecular diagnostics?

Molecular diagnostics is used to detect pathogens using techniques like PCR.
Molecular diagnostics relies only on microscopy.
Molecular diagnostics cannot detect genetic mutations.
Molecular diagnostics is unrelated to genetic engineering.
1

Molecular diagnostics uses techniques like PCR to detect pathogens, genetic mutations, and other molecular markers in biological samples.

What is the main purpose of using molecular diagnostics in biotechnology?

Enhance crop yield
Produce transgenic animals
Early disease detection
Synthesize bioplastics
3

Molecular diagnostics are used for early detection of diseases by identifying genetic material from pathogens.

Which enzyme is responsible for forming phosphodiester bonds between DNA fragments?

DNA polymerase
Ligase
Endonuclease
Helicase
2

Ligase is responsible for forming phosphodiester bonds between DNA fragments during recombinant DNA formation.

Which technique involves growing plant cells in nutrient media to regenerate whole plants?

Micropropagation
Somatic hybridization
Gene cloning
CRISPR-Cas9
1

Micropropagation involves growing plant cells in nutrient media to produce large numbers of identical plants.

Which of the following is correct about Golden Rice?

Golden Rice is modified for higher carbohydrate content.
Golden Rice is enriched with beta-carotene, a precursor of vitamin A.
Golden Rice is used for treating diabetes.
Golden Rice is resistant to fungal infections.
2

Golden Rice is genetically modified to produce beta-carotene, which is converted to vitamin A in the body to address vitamin A deficiency.

Which of the following statements about somatic hybridization is true?

Somatic hybridization involves the fusion of whole plant cells.
Somatic hybridization is used for producing genetically identical clones.
Somatic hybridization involves the fusion of protoplasts from different species.
Somatic hybridization is the same as gene cloning.
3

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

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0