a
base pairs
b
ribose sugar
c
phosphate linkage
d
deoxyri-bose sugar
Explanation
Correct Option
a
Video Explanation
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Discussions (2)
Hsgsvjkkny
5 years ago
If u no no am before if u see pairs which is two ur brain go tell u😜😜😜😜😔😜😜😜😜😜😜😜😜😜😜😜😜
Godbless236
3 years ago
the answer is a .
DNA has a shape of a double helix made up of chains of nucleotide .the nucleotide is made of a phosphate group , a nitrogenous base and a sugar molecule( deoxyribose ) .the nitrogenous base consist of two purines( adenine (A) and guanine (G) ) and two pyrimidine ( thymine(T) and cytosine (C) ) each molecule purines pair to pyrimidine ( e.g A-G and G-C ) forming a chain just like the rung of a ladder ( steps of a ladder) and are held together by hydrogen bond
