Agarose extracted from sea weeds finds use in

Agarose extracted from sea weeds finds use in
A Gel electrophoresis
B Spectrophotometry
C Tissue culture
D PCR

Detailed Solution

DNA fragments obtained by restriction digestion are separated by gel electrophoresis.
The most commonly used matrix is agarose, a natural polymer extracted from sea weeds.
DNA fragments, being negatively charged, move towards the anode through the agarose gel, which acts as a sieve, so they separate according to their size.
Spectrophotometry and PCR do not use agarose; tissue culture media are solidified with agar, not purified agarose.
Hence agarose finds use in gel electrophoresis.

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Practise Separation and isolation of DNA fragments All 2 questions This chapter in 2011 AIPMT-PRE