Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-fact-Hard-Class 12
What is the 5'-end of a polynucleotide chain defined by?
A
A phosphate moiety at the 5' end of the sugar
B
A nitrogenous base linked to the sugar
C
A free OH group of the 3' C
D
A ribose sugar molecule
Correct Answer
Option A
Detailed Explanation
The 5'-end of a polynucleotide chain is referred to as having a phosphate moiety at the 5' end of the sugar, which is part of the backbone structure of DNA.
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