Genome sequencing.
<P>
<Li> Cut the DNA into overlapping fragments with endonucleases.
<Li> Clone the fragments in plasmid or phage vectors.
<Li> Sequence each fragment with dideoxyribonucleotides.
<Li> Order  the  sequences  into  one  overall  sequence  with computer
software.
<P>
   A  haploid  set  of  human chromosomes with 3.2 billion base pairs was
   sequenced in 2003.