Which of the following bond is not present in $DNA$?
$\beta-1^{\prime}-9-N-g$ lycosidic bond
$3^{\prime}-5^{\prime}$ phosphodiester bond
$\beta-1^{\prime}-1- N - glycosidic$ bond
$\beta-1^{\prime}-2-N$-glycosidic bond
What is Okazaki segment
Core particle of nucleosome is composed of how many histones
$Y$ gene in lac operon responsible for .....
Sugars are attached to the pyrimidines by the formation of