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HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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Distinguish between the following:

Hibernation and Aestivation.

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
Concept: undefined >> undefined

The DNA polymerase enzyme used in PCR is obtained from______.

[12] Biotechnology
Chapter: [12] Biotechnology
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Distinguish between the following:

Hibernation and Aestivation

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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How gene amplification is done?

[12] Biotechnology
Chapter: [12] Biotechnology
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Write steps involved in gene amplification.

[12] Biotechnology
Chapter: [12] Biotechnology
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What is euryhaline?

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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______technique is used for in vitro gene cloning or gene multiplication.

[12] Biotechnology
Chapter: [12] Biotechnology
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What are the different types of electrophoresis?

[12] Biotechnology
Chapter: [12] Biotechnology
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Write a short note on vectors.

[12] Biotechnology
Chapter: [12] Biotechnology
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Tissue plasminogen activator and urokinase are used in the treatment of ______.

[12] Biotechnology
Chapter: [12] Biotechnology
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Who observed that within a region, species richness increased with increasing explored area, to a certain limit?

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
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What is Habencular commissure?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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What is EcoRI?

[12] Biotechnology
Chapter: [12] Biotechnology
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How does EcoRI differ from an exonuclease?

[12] Biotechnology
Chapter: [12] Biotechnology
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Fill in the column 'B' with appropriate answer: 

  Column A   Column B
(I) Water adsorbed on soil particles (a) ______
(ii) Water penetrated deep in soil (b) ______
(iii) Water present as hydrated oxides (c) ______
(iv) Water present between soil particle (d) ______

(Capillary water, Combined water, Hygroscopic water, Gravitational water)

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Name the enzyme responsible for the transcription of genetic code to produce mRNA.

[12] Biotechnology
Chapter: [12] Biotechnology
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Which amino acid is coded by the initiation codon?

[12] Biotechnology
Chapter: [12] Biotechnology
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Explain the mechanism of PCR.

[12] Biotechnology
Chapter: [12] Biotechnology
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Importance of PCR.

[12] Biotechnology
Chapter: [12] Biotechnology
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What are the various characteristics of soil?

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
Concept: undefined >> undefined
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