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Biology (Medical Entrance)

Biology Mix Test - 1

14 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Operon model for prokaryotic gene regulation was proposed by

  1. Watson and Crick
  2. Griffith
  3. Oparin and Haldane
  4. Jacob and Monad
Question 2 Multiple Choice (Single Answer)

Decrease in blood pressure stimulates JGA to secrete

  1. rennin
  2. renin
  3. aldosterone
  4. ADH
Question 3 Multiple Choice (Single Answer)

The term osmosis was proposed by

  1. Nollet
  2. Pfeffer
  3. Slatyer and Tayler
  4. Bergerstein
Question 4 Multiple Choice (Single Answer)

Peyer's patches are lymphoid nodules found on

  1. the liver
  2. the ileum
  3. the kidney
  4. the stomach
Question 5 Multiple Choice (Single Answer)

The term root pressure was coined by

  1. Stephan Hales
  2. Pfeffer
  3. Nollet
  4. Bergerstein
Question 6 Multiple Choice (Single Answer)

Ringing experiment to show that xylem is the channel of ascent of sap was conducted by

  1. Sir J.C. Bose
  2. Malphigi, Stephan Hales and Hartig
  3. Godlewski
  4. Dixon and Jolley
Question 7 Multiple Choice (Single Answer)

The caps and tails attached to mRNA protects it from


  1. proteases<o:p></o:p>

  2. Ligases<o:p></o:p>

  3. Nucleases and phosphatases<o:p></o:p><p></p>
  4. Polymerases
Question 8 Multiple Choice (Single Answer)

The term guttation was coined by

  1. Bergerstein
  2. Nollet
  3. Pfeffer
  4. Stephan Hales
Question 9 Multiple Choice (Single Answer)

Who said that transpiration is a necessary evil?

  1. Sir J. C. Bose
  2. Godlewski
  3. Dixon and Jolley
  4. Curtis
Question 10 Multiple Choice (Single Answer)

What causes the warfing of wooden frames in rainy season?

  1. Imbibition
  2. Absorption
  3. Guttation
  4. Transpiration
Question 11 Multiple Choice (Single Answer)

A fresh water plant dies when transferred to marine water due to

  1. root pressure.
  2. exosmosis.
  3. endosmosis.
  4. thermo-osmosis.
Question 12 Multiple Choice (Single Answer)

Root pressure does not occur in

  1. gymnosperms.
  2. angiosperms.
  3. monocots.
  4. dicots.
Question 13 Multiple Choice (Single Answer)

Who coined the the term osmotic pressure?

  1. Nollet
  2. Pfeffer
  3. Bergerstein
  4. Godlewski
Question 14 Multiple Choice (Single Answer)

Who proposed that guttation and bleeding are manifestations of root pressure?

  1. Stocking
  2. Nollet
  3. Bergerstein
  4. Pfeffer
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