Which of the following statement is not correct for nucleic acids?
1
A unit formed by the attachment of a base to 1’ position of sugar is known as nucleoside.
2
Nucleoside linked to phosphoric acid at 5’ position of sugar gives nucleotide.
3
Nucleotides are joined together by phosphodiester linkage between 3' and 5’ carbon atoms of the pentose sugar.
4
A unit formed by the attachment of base to 1’ position of sugar is known as nucleotide.