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

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Biology
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Identify A, B, C, D, in the given diagram of the human reproductive system:

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Sketch and label Human Male Reproductive System.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Write briefly about the Testis.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Name the causative agent of filariasis.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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State any two symptoms of causative agent of filariasis.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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State any two preventive measures of causative agent of filariasis.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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Describe the function of Bulbourethral glands.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Give significance of Leydig's cells.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Explain in short poultry management.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Give reason: Testes are located outside the body cavity in scrotal sacs.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Draw a neat labeled diagram of T.S. of testis.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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The interval between infection and appearance of disease symptoms is called______.

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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What is Anticodon?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Explain ‘Carbon cycle’.

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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Give diagrammatic representation to show a perfect pairing and any ‘two’ Wobble pairings.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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If the codon on m-RNA is AUG, the compatible anticodon on t-RNA is _______.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Explain the carbon cycle with the help of a simplified model.

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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Write important features of a sedimentary cycle in an ecosystem.

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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What is 'RNA'?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Explain different types of non-genetic RNA with diagrams and functions.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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