41.   Besides tracking the human genome, scientists have also mapped the genomes of a fly, a worm, a fruit and both pathogenic and benign bacteria.

42.   Biologists believe the mouse genome will be essential to interpreting the human genome.

43.   Both are researching the human genome.

44.   Blackstone hopes to step into that void, allowing companies like Celera and Biogen to turn the scientific treasures of the human genome into medical advances and commercial profits.

45.   Both versions of the human genome meet the important goal of allowing scientists to search them for desired genes, the genetic instructions encoded in the DNA.

46.   A company that deciphered the human genome has submitted a paper for publication.

47.   A consortium spokeswoman said Monday that Dr. Collins had not criticized Celera but was referring to the definition of completing the human genome.

48.   A long-elusive protein that could have a serious impact in medicine has recently come to light because of the availability of the human genome sequence.

49.   A surprising hero helped the consortium of academic scientists decoding the human genome to avoid a drubbing by the Celera Genomics company.

50.   A scan of the human genome suggests that genes do benefit from having Alus in the neighborhood.