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

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मुख्य विषय
अध्याय
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Biology
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Distinguish between heterochromatin and euchromatin with reference to staining property and activity.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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What is a connecting link?

[5] Origin and Evolution of Life
Chapter: [5] Origin and Evolution of Life
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Which fossil animal is considered as the connecting link between reptiles and birds? Give any one character of each class found in it.

[5] Origin and Evolution of Life
Chapter: [5] Origin and Evolution of Life
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Why honey bees are called best pollinators?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Which gene is introduced in sheep to increase meat production?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Name the enzymes involved in replacement of gaps during RNA processing in prokaryotes and eukaryotes.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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What is a layer?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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What is a broiler?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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How many national parks and sanctuaries are present in Maharashtra?

[13] Organisms and Populations
Chapter: [13] Organisms and Populations
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What is Hamburger's phenomena?

[12] Biotechnology
Chapter: [12] Biotechnology
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Explain lag phase, log phase and steady phase of growth.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Give functions of the following.

Ventilators

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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What are the decisive factors for population density?

[13] Organisms and Populations
Chapter: [13] Organisms and Populations
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Human proteins expressed in cattle milk.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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In a mature, functional mRNA of eukaryotes______.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Match the following:

Column A Column B
(i) Organism (a) Large unit with specific climatic zone
(ii) Population (b) Different species in particular area
(iii) Community (c) Same species in a geographical area
(iv) Biome (d) Basic unit of ecological hierarchy
[13] Organisms and Populations
Chapter: [13] Organisms and Populations
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Define the Transfection.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Define Animal Husbandry.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Define the term Ventilator.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Give a reason All animals are called consumers.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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