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HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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What is genome?

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Very Short Answer Question:

What is denitrification?

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Very Short Answer Question:

Name the bacteria responsible for conversion of nitrite to nitrate.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Long Answer Question:

Explain biological nitrogen fixation with example.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Which two hormones are responsible for the regulation of calcium and phosphorus in the blood?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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What is autosomal inheritance? Explain different disorders due to autosomal inheritance.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Ventricular depolarization is represented by ______.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Mention the difference between hypothyroidism and hyperthyroidism.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Name the cell which is responsible for nitrogen fixation in cyanobacteria.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Name thyroid hormones.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Write the functions of thyroid hormones.

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

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Name any two nitrifying bacteria in soil.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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A child has low BMR, delayed puberty and mental retardation. Identify the disease.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Draw a neat diagram of thyroid gland and label thyroid follicle, follicular cells and blood capillaries.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Sketch and Label thyroid gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Describe role of hormones secreted by thyroid gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Sketch and label histology of thyroid gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Name two types of disorders caused due to hyposecretion of thyroid gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Name the gland that causes following disorder.

Addison's disease

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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