1. Tardigrade
  2. Question
  3. Biology
  4. Which of the following statements are incornect? (i) Type II restriction enzymes require ATP, Mg 2+ and S-Adenyl methionine for restriction. (ii) Hind II always cuts DNA molecules at a particular point by recognising a specific sequence of six base pairs. (iii) Separated DNA fragments cannot be visualised without staining on an agarose gel electrophoresis. (iv) 'ori' is the sequence responsible for controlling the copy number. (v) Reverse transcriptase is a DNA ligase.

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Q. Which of the following statements are incornect?
(i) Type II restriction enzymes require ATP, $Mg ^{2+}$ and S-Adenyl methionine for restriction.
(ii) Hind II always cuts DNA molecules at a particular point by recognising a specific sequence of six base pairs.
(iii) Separated DNA fragments cannot be visualised without staining on an agarose gel electrophoresis.
(iv) 'ori' is the sequence responsible for controlling the copy number.
(v) Reverse transcriptase is a DNA ligase.

Biotechnology : Principles and Processes

Solution:

Correct answer is (b) (i) and (v)