41.   Based on the scanner results, custom software figures out which genes are active.

42.   Because each variant makes only a small contribution to the disease, these genes have hitherto been particularly hard to identify.

43.   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.

44.   Because of such complications, behavioral genetics is moving from OGOD to the idea that no single gene is sufficient for a complex trait.

45.   Because the gene is a vital cancer fighter, producing a protein known to inhibit the runaway growth of cells.

46.   Because there was no height correlation to phog before twins reached puberty, the gene may be involved in controlling pubescent spurts in growth.

47.   A difference of that size is strong evidence that the gene is involved in the disease.

48.   A Bt gene is essentially a string of DNA that contains hundreds of building blocks known as nucleotides.

49.   A gene would be a single tiny snippet.

50.   A newly discovered cancer gene may be much less important than it originally seemed, some molecular biologists say.