How many Hbonds form between AT and GC pairings How can viru

How many H-bonds form between A-T, and G-C pairings? How can viruses differ in their nucleic acid composition? What forms the backbone of DNA?

Solution

There are 2 hydrogen bond between A=T AND 3 for G to C

genetic material of a virus is DNA or RNA but never both

they have several different configuration of nucleic acids 1) (ds)DNA, (ss)DNA, (ds)RNA, (ss(+))RNA, (ss(-)RNA, RNA retro and viral genomes are much smaller than genomes of host

The backbone of the DNA is made from phosphate and sugar residues. In DNA sugars are joined together by phosphate groups that form phosphodiester bonds.