Q. How many of the following statements are incorrect?
(1) Purine nitrogenous base in a nucleotide is attached to pentose sugar by 1,1 glycosidic linkage.
(2) Adenosine is a nucleoside.
(3) Genome of E. coli possess 4.6 × 109 base pair.
(4) Pitch of DNA helix is 3.4 A0.
(5) Euchromatin stains light.
(6) RNA is not more stable than DNA.
(7) RNA can mutate at faster rate than DNA.