The 'Green Revolution' in India, which led to a massive increase in wheat and rice production, was primarily led by the efforts of: MCQ with Answer and Explanation

Question

The 'Green Revolution' in India, which led to a massive increase in wheat and rice production, was primarily led by the efforts of:

A. Both B and C

B. Verghese Kurien

C. M.S. Swaminathan

D. Norman Borlaug

Answer: Option A

Solution (By JKExamLibrary)

The Green Revolution in India was a period of significant agricultural transformation. Norman Borlaug, the 'father of the Green Revolution' globally, developed high-yielding, disease-resistant dwarf wheat varieties in Mexico. M.S. Swaminathan, known as the 'father of the Green Revolution in India', adapted these varieties to Indian conditions and led the scientific and administrative efforts to introduce these high-yielding varieties (along with improved irrigation and fertilizers) to Indian farmers, drastically increasing wheat and rice production.

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Question #1

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In the human body, the 'Medulla oblongata' is a vital part of the brainstem that controls involuntary functions such as:

A. Heartbeat, breathing, and blood pressure

B. Memory and learning

C. Vision and hearing

D. Balance and coordination

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Correct Answer: Option A

Explanation:
The medulla oblongata is the lowest part of the brainstem, connecting the pons to the spinal cord. It contains vital autonomic centers that control essential, involuntary life-sustaining functions. These include the cardiovascular center (regulating heart rate and blood vessel diameter), the respiratory center (regulating the rate and depth of breathing), and reflex centers for vomiting, coughing, sneezing, and swallowing. Damage to the medulla is often fatal due to the cessation of these vital functions.

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Question #2

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Which tissue is responsible for the increase in the girth of a dicot stem?

A. Lateral meristem

B. Apical meristem

C. Intercalary meristem

D. Epidermis

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Correct Answer: Option A

Explanation:
Lateral meristems—vascular cambium and cork cambium—are responsible for secondary growth, increasing the girth (diameter) of dicot stems and roots. Apical meristem at root and shoot tips causes primary growth in length. Intercalary meristem at nodes helps in elongation in grasses. Epidermis is a protective outer layer. Secondary growth is absent in most monocots due to lack of vascular cambium.

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Question #3

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The hormone that stimulates the release of growth hormone from the pituitary is:

A. Somatostatin

B. Growth hormone-releasing hormone (GHRH)

C. Dopamine

D. Cortisol

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Correct Answer: Option B

Explanation:
GHRH, from the hypothalamus, stimulates the anterior pituitary to secrete growth hormone. Somatostatin inhibits GH release. Dopamine inhibits prolactin.

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