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Biology · PYQ NEET UG 2019(2)

हिन्दी

Match the following enzymes with their functions:\nColumn I\ni. Restriction endonuclease\nii. Restriction exonuclease\niii. DNA ligase\niv. Taq polymerase \nColumn II\na. Joins the DNA fragments\nb. Extends primers on genomic DNA template\nc. Cuts DNA at specific position\nd. Removes nucleotides from the ends of DNA \nSelect the correct option from the following:

  1. A
    i – b, ii – d, iii – a, iv – c
  2. B
    i – c, ii – a, iii – d, iv – b
  3. C
    i – c, ii – d, iii – a, iv – b
  4. D
    i – d, ii – c, iii – a, iv – b
View Answer & Solution

Correct answer · Option C

i – c, ii – d, iii – a, iv – b

Explanation

Restriction endonuclease cuts DNA at specific sites (c), restriction exonuclease removes nucleotides from ends (d), DNA ligase joins DNA fragments (a), and Taq polymerase extends primers (b). Thus i-c, ii-d, iii-a, iv-b is correct.
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