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HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Important Questions for Biology

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अध्याय
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Biology
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What is emasculation?

Appears in 2 question papers
Chapter: [0.11] Enhancement of Food Production
Concept: Plant Breeding

Name any two edible mushrooms.

Appears in 2 question papers
Chapter: [0.11] Enhancement of Food Production
Concept: Microbes in Human Welfare

Give the economic importance of lac.

Appears in 2 question papers
Chapter: [0.11] Enhancement of Food Production
Concept: Commercial Applications of Biotechnology > Animal Husbandry (Livestock)

Write chemical reactions to represent Methanogenesis.

Appears in 2 question papers
Chapter: [0.11] Enhancement of Food Production
Concept: Microbes in Energy Generation

Illustrate any ‘three’ genes which can be used in gene therapy.

Appears in 2 question papers
Chapter: [0.12] Biotechnology
Concept: Commercial Applications of Biotechnology

What is the role of Taq-polymerase in PCR technology?

Appears in 2 question papers
Chapter: [0.12] Biotechnology
Concept: Process and Principles of Biotechnology

For production of edible vaccines plants are used. Explain this any one example.

Appears in 2 question papers
Chapter: [0.12] Biotechnology
Concept: Commercial Applications of Biotechnology

What is GM plant? Write its different advantages.

Appears in 2 question papers
Chapter: [0.12] Biotechnology
Concept: Commercial Applications of Biotechnology

Define Niche. 

Appears in 2 question papers
Chapter: [0.13] Organisms and Populations
Concept: Population Interactions

The partially decomposed organic matter is formed by a process called ______.

Appears in 2 question papers
Chapter: [0.14] Ecosystems and Energy Flow
Concept: Classification of Animal

What is biomagnification?

Appears in 2 question papers
Chapter: [0.14] Ecosystems and Energy Flow
Concept: Concept of Energy Flow in an Ecosystem

Lichens taking roots on bare rocks are an example of ______.

Appears in 2 question papers
Chapter: [0.14] Ecosystems and Energy Flow
Concept: Ecological Succession

What are ‘pioneer species’? Give two examples of them.

Appears in 2 question papers
Chapter: [0.14] Ecosystems and Energy Flow
Concept: Ecological Succession

Explain the following sequence of succession after a forest fire.

Appears in 2 question papers
Chapter: [0.14] Ecosystems and Energy Flow
Concept: Ecological Succession

What is Red Data Book?

Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Biodiversity

Ozone depletion is occurring widely in the stratosphere; it leads to an ozone hole caused mainly due to ______.

Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Ozone Layer Depletion

Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.

Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Loss of Biodiversity

Select the odd example with respect to types of conservation strategies. 

Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife

A medicinal plant Rauwolfia vomitoria shows variations in concentration of reserpine from location to location. What type of level of biodiversity is this?

Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Levels of Biodiversity

Write full form of

  1. IUCN
  2. NBA
Appears in 2 question papers
Chapter: [0.15] Biodiversity, Conservation and Environmental Issues
Concept: Biological Diversity Act, 2002
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