問題詳情

In his presentation at the 1998 Cambridge meeting, James Wilson characterized genetherapy as a novel approach in its very early stages. Its 36____. , he said, is to change theexpression of some genes in an attempt to treat, cure, or ultimately 37____. disease. Current genetherapy is primarily experiment based, with a few early human clinical trials under way.Theoretically, he continued, gene therapy can be targeted to somatic (body) or germ (eggand sperm) cells. In somatic gene therapy the recipient's genome is changed, but the 38____. isnot passed along to the next generation. This form of gene therapy is 39____. with germline genetherapy, in which a goal is to pass the change on to 40____. . Germline gene therapy is not beingactively investigated, 41____. in larger animals and humans, although a lot of discussion is beingconducted about its value and desirability.Gene therapy should not be 42____. with cloning, which has been in the 43____. so muchin the past year, Wilson continued. Cloning, which is creating another individual with essentiallythe same genetic makeup, is very different from gene therapy.Listing three scientific 44____. in gene therapy, Wilson emphasized the concept of vehiclescalled vectors (gene carriers) to deliver therapeutic genes to the patients' cells. 45____. the gene is inthe cell, it needs to operate correctly. Patients' bodies may reject treatments, and, finally, there isthe need to regulate gene expression. Wilson expressed optimism that many groups are makingheadway and cooperating to overcome all these obstacles.
36.
(A) background
(B) model
(C) purpose
(D) theory

參考答案

答案：C
難度：簡單0.781609
統計：A(1),B(4),C(68),D(11),E(0)

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