21.   Another dilemma is that biologists might wish to test the supposed role of the uniquely human genes by inserting them into chimpanzees.

22.   Animals with human genes could be used, in theory, to produce hormones or other biological products to treat human diseases.

23.   At a meeting this month at the Cold Spring Harbor Laboratory on Long Island they opened a sweepstakes for bets on the number of human genes.

24.   At a meeting this month at the Cold Spring Harbor Laboratory they opened a sweepstake for bets on the number of human genes.

25.   At present, researchers do not believe that mutations in the human gene are the fundamental cause of most obesity.

26.   Because human and chimp genes are so similar, a gene chip studded with human genes can detect the activity of genes in a chimpanzee neuron reasonably well.

27.   Because of the unity of evolution, the sequence of every human gene is recognizably similar to the equivalent gene in other organisms.

28.   Because of the unity of evolution, most human genes have counterparts in lower organisms, many of which have now been sequenced and their roles ascertained.

29.   Besides the human Factor IX gene, the Avigen virus carries a piece of DNA that signals the cell to turn the gene on and make its product.

30.   Beth Israel Deaconess Medical Center has suspended its remaining human gene therapy trial, citing growing concerns about the safety of the procedure.