填空题

A. subtle B. mental C. extremely D. effective
E. examine F. range G. accomplish H) ultimately
I) images J) provide K) otherwise L) difference
M) side-effects N) optical O) confirmed
Promise of Genetic Treatments
Many fields of science stand to gain from the ongoing analysis of the human genome (染色体基因), but none more so biomedicine. The research promises new treatments for a huge (47) of diseases, all of which must have some genetic component. It could (48) answer questions about the nature of life itself. It could also answer riddles about addictions such as gambling, or (49) treatments for jet-lag, or sleep disorders or (50) illness.
Computer search engines are already mining the genome for candidate disease genes— more than 40 have been found already and hundreds of more are expected to be (51) in the next few years. Programs are finding the (52) genetic variations in people, that do not cause disease but that could lead more personalized treatments with fewer (53)
Tiny misspelling in the genome’s biological instructions, either inherited or acquired during one’s lifetime, can make all the (54) between health and disease. Genetic tests to detect those glitches in people can allow them to reduce that risk by making lifestyle changes or taking preventive drugs. And by studying how the errors cause disease, scientists are getting new ideas about how to design more (55) drugs. But scientists warn that there is a long way to go—even if there are only 30,000 genes to (56) .