List any four salient features of human genome project.

Explanation

1. The human genome contains 3164.7 million nucleotide bases.
2. The average gene consists of 3000 bases.
3. The largest known human gene being dystrophin at 2.4 million bases.
4. The total number of genes is estimated at 30,000.99.9 percent nucleotide base sequences are the same in all the people.
5. The function of 50% genes discovered is still unknown.
6. Less than 2 percent of the genome, codes for proteins.
7. Repeated sequences make up very large portion of human genome.
8. Chromosome I has the most genes (2968) and Y has the fewest (231).
9. It is identified about 1.4 million locations where single-base DNA differences (SNPs -single nucleotide polymorphism) occur in humans.