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. M.S. Swaminathan

B. Both B and C

C. Norman Borlaug

D. Verghese Kurien

Answer: Option B

Solution (By JKSSB Mock Tests)

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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The gland that secretes melatonin, regulating the sleep-wake cycle, is the:

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B. Pituitary gland

C. Pineal gland

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Correct Answer: Option C

Explanation:
The pineal gland is a small endocrine gland in the brain that secretes melatonin, a hormone that regulates circadian rhythms and sleep-wake cycles. Melatonin production is influenced by light exposure: it increases in darkness and decreases in light. The pituitary is the master gland, thyroid regulates metabolism, adrenal secretes adrenaline.

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The structure that produces ribosomes in the nucleus is the:

A. Nucleolus

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C. Nuclear pore

D. Nucleoplasm

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Correct Answer: Option A

Explanation:
The nucleolus is a dense region within the nucleus where ribosomal RNA (rRNA) is transcribed and ribosomal subunits are assembled. Chromatin is DNA-protein complex, nucleoplasm is the fluid, nuclear pores regulate transport.

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Which of the following bacterial diseases is transmitted through the bite of an infected rat flea (Xenopsylla cheopis)?

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Correct Answer: Option B

Explanation:
Plague is a severe zoonotic bacterial disease caused by Yersinia pestis. It is primarily transmitted to humans through the bite of infected rat fleas, most commonly Xenopsylla cheopis. The disease has three main forms: bubonic (swollen lymph nodes), pneumonic (lungs), and septicemic (blood). Tuberculosis is airborne, leprosy is transmitted via prolonged close contact, and tetanus enters through deep wounds.

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