The structure of polynucleotide chain consists of two distinct end's each with specific chemical groups. Given below are two statements regarding the ends.
Statement I: A polymer of nucleotide formed has a free phosphate moiety at 
-end of sugar, which is referred to as 
-end of polynucleotide chain.
Statement II: At the other end of the polynucleotide, the sugar has a free OH of 
group which is referred to as 
-end of the polynucleotide chain.
In the light of the above statements, choose the most appropriate answer from the options given below:
Text Solution
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In a polynucleotide the 
end normally has a free phosphate attached to the 5'-carbon of the sugar, while the 
end has a free hydroxyl 
on the 
-carbon. The two given statements have the ends reversed so both the statements are incorrect.
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