Biology
General
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Question

In the origin of life, microspheres are most primitive protobiont, which have a membrane of

  1. Lipids and proteins  
  2. Lipids  
  3. Carbohydrates  
  4. fats  

The correct answer is: Lipids and proteins


    The covering membrane can be of the lipid bilayer if the mixture contains lipids and corresponding to cell membrane. Sydney Fox (1950) heated a dry mixture of amino acids to130 degree minus 180 degree C. It formed proteins or polypeptides. The latter were cooled in water. It produced protenoid microspheres of 1 minus 2 mu mdiameter.

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