331. In which year did Johannes Nicolaus Bronsted and Thomas Martin Lowry propose the fundamental concept of acids and bases?

  • (A) 1928
  • (B) 1921
  • (C) 1925
  • (D) 1923

332. In the context of DNA, which of the following principles governs the process of transcription?

  • (A) The transforming principle
  • (B) The principle of complementarity
  • (C) Semiconservative nature of DNA
  • (D) The principle of inheritance

333. Who was the first person to conduct a systematic study of chromosomes during division and called this process mitosis?

  • (A) Friedrich Miescher
  • (B) Thomas Hunt Morgan
  • (C) Antonie van Leeuwenhoek
  • (D) Walther Flemming

334. Every year in the month of February, this camel festival is organised by Rajasthan Tourism Development Corporation in __________.

  • (A) Barmer
  • (B) Bikaner
  • (C) Jaisalmer
  • (D) Jodhpur

335. Which of the following is a rare group of genetic disorders caused by mutations of certain genes affecting the colour (pigmentation) of the skin, hair and eyes?

  • (A) Alkaptonuria
  • (B) Alagille syndrome
  • (C) Albinism
  • (D) Angelman syndrome

336. Which of the following types is NOT an element of classical Carnatic music?

  • (A) Kriti
  • (B) Padam
  • (C) Sthayi
  • (D) Thumri

337. Who proposed that ‘Light is made up of waves propagating perpendicular to the direction of its movement’?

  • (A) Newton
  • (B) Huygens
  • (C) Kepler
  • (D) Pauli

338. Which organisation was started in the Pune district of Maharashtra in the 1870s with the aim of promoting education and social rights among the underprivileged group of the society?

  • (A) Satyashodhak Samaj
  • (B) Deepalaya Samaj
  • (C) Shoshit Seva Samaj
  • (D) Prarthana Samaj

339. Where was the first Durand Cup, India’s oldest football tournament, held?

  • (A) Madras
  • (B) Shimla
  • (C) Calcutta
  • (D) Delhi

340. In which year did a trio of scientists, Avery, MacLeod and McCarty, prove that except viruses, all living organisms have DNA as their genetic material?

  • (A) 1918
  • (B) 1902
  • (C) 1944
  • (D) 1961

Total Quizz:- 1338

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