Number of single nucleotide polymorphism in human genome are about

(a) In human genome, which one of the chromosomes has the most genes and which has the fewest? (b) Scientist have identified about 1cdot4 million single nucleotide polymorphs in human genome. How is this information of their existence going to help the scientists ?

Human genome project

Human Genome Project

Nucleotide pairs present in human genes very between

The total number of nitrogenous bases in human genome is estimated to be about