molecular basis of inheritance

 DNA:- In most org.(nucleotide -- monomer)

Nucleic acids of two types

1.DNA

2.RNA

WHY DNA is more stable?

at the place of OH o is removed so,it is not stable.

RNA - it has multiple function such as 

-messenger -mRNA

- also have catalytic role or as an adaptive molecule.

-mostly in virus.

Length = no. of nucleotide/base pair

fi * 174 --> 5386 nucleotide since it is a nucleotide it is not forming a base pair

lambada ---> 48502 bp

E.coli-->4.6*10^6bp.

Human -->3.3*10^9bp

since they are forming the base pair they are double standards and the first one is singele standard.

what is the difference between nucleotide and nucleoside...

Nitrogen Base + sugar --->Nucleoside + Phosphate---> Nucleotide

purine - aag---A,G aganin and guanine also known as emidiasole

pyfimidine - C,T,U---CUT cytocine,uracine and thymine

Nucleosides:-

Adenosine,guanosine,thymidine,cytidine,uridine.

phosphoester 5'---------------3' free OH group