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Agarose extracted from sea weeds finds use in

  • tissue culture

  • PCR

  • gel electrophoresis

  • gel electrophoresis


C.

gel electrophoresis

Gel electrophoresis is a technique to separate fragments of DNA. Since DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. Now-a-days the most commonly used matrix is agarose which is a natural polymer extracted from seaweeds (e.g., Gelidium, Gracilaria, Gigartina, etc.).

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Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it?
5' ______ GAATTC ________ 3'
3'________CTTAAG ________ 5'

  • Deletion mutation

  • Start codon at the 5'end

  • Palindromic sequence of base pairs

  • Palindromic sequence of base pairs


There is a restriction endonuclease called Eco RI. What does 'co' part in it stand for?

  • Coelom

  • Coenzyme

  • coli

  • coli


Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

  • A: Triglycerid e- major - source of energy

  • B: Uracil - a component of DNA

  • A - Lecithin - a component of cell membrane

  • A - Lecithin - a component of cell membrane


Maximum number of existing transgenic animals is of 

  • mice 

  • cow

  • pig

  • pig


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