OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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.Peptidase
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.Amylases
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.Lipases
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.Nucleases
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Detailed explanation-1: -Restriction enzymes belong to a larger class of enzymes called Nucleases. They cut DNA at special pelindromic sequence. Restriction enzymes are of two types-Restriction endonuclease and Restriction exonuclease.
Detailed explanation-2: -Restriction enzymes are one class of the broader endonuclease group of enzymes.
Detailed explanation-3: -A fourth type (type IV) – methylation-dependent restriction enzymes (MDREs) – are REs that preferentially target modified DNA containing glycosylated bases, or methylated on adenine or cytosine residues, but lack a cognate MTase altogether.
Detailed explanation-4: -Type III restriction enzymes are a group of endonucleases that recognize a non-pallindromic sequence, comprising two inversely oriented sites.
Detailed explanation-5: -Explanation: Three classes of restriction enzymes are there, I, II and III.