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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

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What happened when heat-killed S-cells along with living R-cells were injected into mice?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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If a DNA has 20 Adenine and 30 cytosine bases. What will be the total number of purine bases in the given sample?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Why water acts as a thermal buffer?

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Why water is called as ‘Elixir of Life’?

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Compare and Contrast the insitu and exsitu conservation.

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

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Explain the different types of niche.

[13] Organisms and Populations
Chapter: [13] Organisms and Populations
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Explain three main functions of free antibodies produced by B-lymphocytes.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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What is called elixir of life?

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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What makes elixir of life it so important?

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Log S =log C = Z log A is the equation that depicts relation between______.

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
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Write the name of Gaseous growth hormone known to you.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Write the name of Standard bioassay method for auxins.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Explain how species diversity can harm ecosystem.

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
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Expand the abbreviation AMIS

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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Expand the abbreviation CMIS in immunology.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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Which one of the following produces antibodies?

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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What is injected in vaccination?

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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Write the functions of DNA.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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  1. What does the adjoining diagram illustrate?
  2. Name the parts labelled 'A' and 'B'
  3. Name the type of cells that produce this molecule.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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