1.   Ironically, a similar belief prevails today, in a slightly different mutation.

2.   This may be due to different mutations within the APC gene causing variations from a total absence of gene product through to protein only partially reduced in function.

3.   Different mutations in the cystic fibrosis gene appear to contribute to heterogeneity of the CF phenotype.

4.   And it has proven more difficult than expected to predict what form a disease will take by studying the many different mutations that can occur in a gene.

5.   As species branch apart, their genes gradually accumulate different mutations.

6.   Different mutations are involved in different cancers, but at some point enough accumulate in one cell to knock out the vital mechanisms that prevent runaway cell division.

7.   The virus finds it difficult to make all the different genetic mutations required to resist more than one drug at the same time.

8.   They soon found that many different mutations could occur at various sites along the gene, each of them inactivating the gene in different ways.

9.   With a different mutation, the males court only males and fail to sing their courtship song.

10.   They identified three different mutations among the cases.

a. + mutation >>共 150
genetic 30.05%
random 4.82%
new 4.13%
natural 2.75%
different 2.52%
same 2.06%
particular 1.83%
single 1.38%
specific 1.38%
inherited 1.38%
different + n. >>共 1053
way 3.56%
kind 2.51%
story 2.01%
type 1.82%
approach 1.73%
view 1.62%
part 1.49%
thing 1.37%
time 1.23%
direction 1.12%
mutation 0.02%
每页显示:    共 11