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

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Attempt any TWO of the following:

Enlist the applications of tissue culture.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Attempt any TWO of the following: 

With the help of a suitable example illustrate ‘Palindrome’. 

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Describe any ‘two’ applications of tissue culture technique.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Long answer question

Answer the question after observing the diagram given below.

What do the synaptic vesicles contain?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Long answer question.

Answer the question after observing the diagram given below.

What process is used to release the neurotransmitter?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Long answer question

Answer the question after observing the diagram given below.

What should be the reason for the next impulse to be conducted?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Long answer question

Answer the question after observing the diagram given below.

Will the impulse be carried by the postsynaptic membrane carried even if one pre-synaptic neuron is there?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Long answer question

Answer the question after observing the diagram given below.

Can you name the channel responsible for their transmission?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Very Short Answer Question:

Which are the nucleosomal 'core' histones?

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

Write a short note on DNA packaging in the eukaryotic cell.

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
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Choose the correct alternative.

_______ muscles contract when the external intercostal muscles contract.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Very short answer question.

Why is a gas exchange very rapid at the alveolar level?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Short answer question.

Why is it advantageous to breathe through the nose than through the mouth?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Distinguish between open circulation and closed circulation.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Long answer question:

Smita was working in a garage with the doors closed and automobile's engine running. After some time she felt breathless and fainted. What would be the reason? How can she be treated?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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How electrical synapse differs from chemical synapse?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Name three Mixed cranial nerves along with their numbers.

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

Cerebrum and Cerebellum.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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In order for a stimulus to be effective, the stimulus must have a minimum intensity called ______ stimulus.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Find the odd one out:

[4] Molecular Basis of Inheritance
Chapter: [4] Molecular Basis of Inheritance
Concept: undefined >> undefined
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