The unflattering answer could be for no other reason than random genetic drift.

Genetic drift can even counteract natural selection.

遗传漂变甚至可以抵消自然选择.

Random genetic drift has certainly played a big role in human evolution.

随机遗传漂变在人类进化过程中无疑起到了很大的作用.

The result shows that genetic drift has a strong effect on the loss of genetic diversity.

结果表明,圈养大熊猫群体规模小,漂变是导致遗传多样性丢失的主要因素.

Genetic engineering is perhaps the most exciting recent development in biology.

遗传工程也许是生物学中最激动人心的新发展.

Affinity peptide ( Marker ) became more important in the development of genetic engineering.

标记亲和多肽片段以其优越性在基因工程中占有重要的地位.

The potential for abuse of genetic engineering has presented society with many ethical and legal controversies.

滥用基因工程的可能性使社会面对许多伦理和法律争议.

Molecular techniques for genetic engineering came to the world during 70 s.

遗传工程的分子技术于本世纪70年代问世.

Genetic engineering technology, in medicine and agriculture on a wide range of applications.

基因工程技术, 在医药及农业上应用广泛.

Xiao Ming has been admitted by Shanghai University to study genetic engineering.

小明考入了上海大学的遗传工程专业.

He chose genetic engineering to be his lifelong career.

他选择了遗传工程学作为终生的事业.

B : The biologists are making an important experiment in genetic engineering these days.

这些天生物学家正在入行遗传工程学方面的重要试验.

This technique is controversial and raises issues of sex selection and genetic engineering.

这技术有争议,引出性别选择和遗传工程的问题.

They say genetic engineering improves crops.

他们称基因工程使收成增加.

During genetic engineering, DNA with creative potential was included, for the benefit of mankind.

在基因改造过程中, 有着原创潜能的DNA会 被包括进去, 以使人类受益.

Today's scientists are recreating dinosaurs through genetic engineering. Sounds like science fiction Not any longer.

今天大家科学家们正就在通过基因工程再造恐龙. 听起来很像科幻文学小说?今天那多切不再就是科幻.

It's unclear whether the regulatory body , the Genetic Engineering Appraisal Committee ( GEAC ) will okay the potato.

现在还不清楚管理机关——基因工程评估委员会 ( GEAC ) 是否会同意这种土豆.

Genetic engineering will have revolutionary consequences for mankind.

遗传工程将对人类产生深远的影响。

The genetic engineering technique used in the mice cannot be used in people, he said.

他说用在老鼠身上的基因工程技术不能用在人身上.

Thanks. And I expect to red your book on genetic engineering.

谢谢. 我还想读一些写的遗传工程方面的书呢.

Genetic engineering should allow people to lead healthier, happier lives and add decades to our span.

基因工程应该让人类拥有更健康, 更快乐的生活,还会延长我们的寿命.