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Home Questions CYDEE2D8PQ
Target Exam

CUET

Subject

Biology

Chapter

Biotechnology -Principles and Processes

Question:

Match the Column 1 with Column 2 with respect to the nomenclature of enzyme Eco RI and select the correct option :

1) E a) Ist in order of identification
2) co b) Genus
3) R c) Species
4) I  d) Strain
Options:

1-b,2-a,3-d,4-c

1-b,2-d,3-c,4-a

1-b,2-c,3-d,4-a

1-b,2-c,3-a,4-d

Correct Answer:

1-b,2-c,3-d,4-a

Explanation:

The correct answer is Option (3)- 1-b,2-c,3-d,4-a

1) E b) Genus
2) co c) Species
3) R d) Strain
4) I  a) 1st in order of identification

Restriction enzymes are named using a convention where the first letter of the name comes from the genus name, and the second and third letters come from the species name of the prokaryotic cell from which they were isolated. For example, EcoRI comes from Escherichia coli RY 13. In EcoRI, the letter ‘R’ is derived from the name of strain. Roman numbers following the names indicate the order in which the enzymes were isolated from that strain of bacteria.

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