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mediumMCQNEET 2020 E12026Biology
1 mark

The specific palindromic sequence which is recognized by EcoRI is:

  1. A
    5' - GAATTC - 3' / 3' - CTTAAG - 5'
  2. B
    5' - GGAACC - 3' / 3' - CCTTGG - 5'
  3. C
    5' - CTTAAG - 3' / 3' - GAATTC - 5'
  4. D
    5' - GGATCC - 3' / 3' - CCTAGG - 5'

Solution & Step-by-step Explanation

EcoRI recognizes the following palindromic sequence:
5' - GAATTC - 3'
3' - CTTAAG - 5'
It cuts the DNA between bases G and A on both strands.

Practice this question

Try it yourself before checking the explanation above.

The specific palindromic sequence which is recognized by EcoRI is:
A
5' - GAATTC - 3' / 3' - CTTAAG - 5'
B
5' - GGAACC - 3' / 3' - CCTTGG - 5'
C
5' - CTTAAG - 3' / 3' - GAATTC - 5'
D
5' - GGATCC - 3' / 3' - CCTAGG - 5'

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