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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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Give the central dogma of protein synthesis.

[4] Molecular Basis of Inheritance
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Guano deposits are rich in ______.

[14] Ecosystems and Energy Flow
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Explain the process of translation.

[4] Molecular Basis of Inheritance
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Define the term:

Plasmolysis

[6] Plant Water Relation
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Answer the following question in ‘One’ sentence only:

Enlist the histones which form an octamer of nucleosome.

[4] Molecular Basis of Inheritance
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Attempt any TWO of the following:

Define the terms ‘codon’ and ‘anticodon’. 

[4] Molecular Basis of Inheritance
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The abundance of phosphate, causing algal overgrowth resulting in depletion of oxygen and killing other aquatic life is known as --------------------------. 

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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Sketch and label the ‘clover leaf model’ of t-RNA.

[4] Molecular Basis of Inheritance
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Name any ‘two’ edible varieties of mushrooms. Give nutritional values of these. 

[14] Ecosystems and Energy Flow
Chapter: [14] Ecosystems and Energy Flow
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Define the Cohesive and Adhesive forces.

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Which of the following diseases can be contracted by droplet infection?

[10] Human Health and Diseases
Chapter: [10] Human Health and Diseases
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Name the causative agent of typhoid fever?

[10] Human Health and Diseases
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How does the transmission of the following diseases take place?

Pneumonia

[10] Human Health and Diseases
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Write a short note on typhoid.

[10] Human Health and Diseases
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Enlist the species of honey bee mentioning their specific uses.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Multiple Choice Question:

Translation occurs in the _______.

[4] Molecular Basis of Inheritance
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The enzyme required for transcription is _______.

[4] Molecular Basis of Inheritance
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Multiple Choice Question:

Transcription is the transfer of genetic information from _______.

[4] Molecular Basis of Inheritance
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Multiple Choice Question:

Which of the following is NOT part of protein synthesis?

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

Why the genetic code is considered as commaless?

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