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Question Bank Solutions for ISC (Science) Class 12 - CISCE - Biology (Theory)

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Biology (Theory)
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Name the scientists who Invented the CT scan

[0.031] Human Health and Diseases
Chapter: [0.031] Human Health and Diseases
Concept: Introduction of Human Health and Diseases

State four causes of population growth.

[0.051] Organisms and Populations
Chapter: [0.051] Organisms and Populations
Concept: Introduction of Organisms and Populations

State consequences of population growth.

[0.051] Organisms and Populations
Chapter: [0.051] Organisms and Populations
Concept: Introduction of Organisms and Populations

Give reasons for the following:

At higher temperatures, green plants start evolving CO2 instead of O2.

[0.052000000000000005] Ecosystem
Chapter: [0.052000000000000005] Ecosystem
Concept: Introduction and Types of Ecosystem

Give one significant contribution of the given scientists:

M. S. Swaminathan

[0.032] Strategies for Enhancement in Food Production
Chapter: [0.032] Strategies for Enhancement in Food Production
Concept: Introduction of Strategies for Enhancement in Food Production

Explain industrial melanism.

[0.054000000000000006] Environmental Issues
Chapter: [0.054000000000000006] Environmental Issues
Concept: Environmental Issues

What does PCR stand for? Describe the different steps of PCR

[0.040999999999999995] Biotechnology - Principles and Processes
Chapter: [0.040999999999999995] Biotechnology - Principles and Processes
Concept: Process and Principles of Biotechnology

Give an account of the Blue-White Method of selection of recombinants

[0.040999999999999995] Biotechnology - Principles and Processes
Chapter: [0.040999999999999995] Biotechnology - Principles and Processes
Concept: Process and Principles of Biotechnology

Write a short note on Electrophoresis.

[0.040999999999999995] Biotechnology - Principles and Processes
Chapter: [0.040999999999999995] Biotechnology - Principles and Processes
Concept: Process and Principles of Biotechnology

What is symbiosis?

[0.011000000000000001] Reproduction in Organisms
Chapter: [0.011000000000000001] Reproduction in Organisms
Concept: Reproduction in Organisms

Define the Niche

[0.051] Organisms and Populations
Chapter: [0.051] Organisms and Populations
Concept: Introduction of Organisms and Populations

Explain the term perianth.

[0.011000000000000001] Reproduction in Organisms
Chapter: [0.011000000000000001] Reproduction in Organisms
Concept: Reproduction in Organisms

Give two significant difference between:

Transpiration and Guttation

[0.052000000000000005] Ecosystem
Chapter: [0.052000000000000005] Ecosystem
Concept: Introduction and Types of Ecosystem

Give two significant differences between:

Chlorophyll ‘a’ and Chlorophyll b ‘

[0.052000000000000005] Ecosystem
Chapter: [0.052000000000000005] Ecosystem
Concept: Introduction and Types of Ecosystem

Give the scientific term for the following:

Statistical study of the human population.

[0.051] Organisms and Populations
Chapter: [0.051] Organisms and Populations
Concept: Introduction of Organisms and Populations

Expand the following abbreviation: BAC

[0.040999999999999995] Biotechnology - Principles and Processes
Chapter: [0.040999999999999995] Biotechnology - Principles and Processes
Concept: Process and Principles of Biotechnology

Name the scientist who has contributed to the following: Photorespiration

[0.052000000000000005] Ecosystem
Chapter: [0.052000000000000005] Ecosystem
Concept: Introduction and Types of Ecosystem

Name the scientist who has contributed to the following: Principle of limiting factors

[0.051] Organisms and Populations
Chapter: [0.051] Organisms and Populations
Concept: Introduction of Organisms and Populations

Name the scientist who has contributed to the following :

Photolysis of water

[0.052000000000000005] Ecosystem
Chapter: [0.052000000000000005] Ecosystem
Concept: Introduction and Types of Ecosystem

Give one significant difference between:

Electroporation and Gene Gun.

[0.040999999999999995] Biotechnology - Principles and Processes
Chapter: [0.040999999999999995] Biotechnology - Principles and Processes
Concept: Process and Principles of Biotechnology
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