An enzyme isolated from E.coli breaks ester linkage between sugar and phosphate moiety in RNA molecules. This enzyme belongs to class
1. Isomerase
2. Ligase
3. Lyase
4. Hydrolase
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Given below is a diagrammatic representation of a helical protein where a part of the protein is enlarged.
Identify the amino acids occurring at the N-terminal and C-terminal of the enlarged section of polypeptide respectively.
1. Serine and cysteine
2. Cysteine and tyrosine
3. Tyrosine and Glutamin acid
4. Seine and Glutamic acid
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