List 4 ways how DNA & RNA differ:
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RNA and DNA are different in various aspects-
RNA is single stranded molecule while DNA ca be either double or single stranded(though very few viruses have been seen having dsRNA and dsRNA is also seen in RNA interference techniques).DNA is meant for storage of genetic information while RNA is meant for expression of the stored genetic information.DNA depends upon RNA for gene expression through RNA dependent protein synthesis machinery.DNA has 4 nitrogenous bases viz. Adenine , cytosine , guanine and thymine while RNA also has 4 bases , the only difference being that instead of thymine , uracil is present.DNA is a highly stable compound and undergoes mutations mainly bcoz of the action of mutagens while RNA is a labile and fragile structure and can mutate at high rates even in the absence of mutagens ex. during any sort of replication or expression mechanism of the cell.This is the reason why viral infections involving RNA viruses and Retroviruses are dificult to cure as the virus mutates against the medication and renders it useless.
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RNA is single stranded molecule while DNA ca be either double or single stranded(though very few viruses have been seen having dsRNA and dsRNA is also seen in RNA interference techniques).DNA is meant for storage of genetic information while RNA is meant for expression of the stored genetic information.DNA depends upon RNA for gene expression through RNA dependent protein synthesis machinery.DNA has 4 nitrogenous bases viz. Adenine , cytosine , guanine and thymine while RNA also has 4 bases , the only difference being that instead of thymine , uracil is present.DNA is a highly stable compound and undergoes mutations mainly bcoz of the action of mutagens while RNA is a labile and fragile structure and can mutate at high rates even in the absence of mutagens ex. during any sort of replication or expression mechanism of the cell.This is the reason why viral infections involving RNA viruses and Retroviruses are dificult to cure as the virus mutates against the medication and renders it useless.
These are a few points. Ask for more if you need.Hope it helps!
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