"There is no single gene, no single DNA marker, that would distinguish one population from another," Myers said.

“没有一个单独的基因，或单独的一个DNA标记，可以将不同的种群区分开来，”Myers说。

youdao

Duplicate coding of verbal autopsy results has little advantage over a single-coder system for mortality surveillance or for identifying population patterns of death.

进行死亡率监测或确认人口死亡类型时，死因推断结果的双重编码与单个编码员系统相比优势较小。

youdao

It is a moment to consider the rapid growth of a site whose 400m-plus users outnumber the population of any single country except India and China.

对于这样一家拥有逾4亿用户（超过除印度和中国以外任何一个国家的人口总数）的网站，人们是时候仔细琢磨一下它的快速增长了。

youdao

The march of globalisation will create a single mega-population of people on the planet in which more and more viruses have the potential to survive and thrive.

ECONOMIST: Science

"Coupled with recent genetic data, our finding indicates that the Atlantic population -- and perhaps the world population -- are connected and may constitute a single population, " Skomal said.

CNN: Scientists discover winter home of world's second-biggest fish

While there is no doubt that wind, solar and geothermal have ample energy to power the planet--the sunlight that hits Earth in a single hour contains enough energy to fuel the human population for a year--they will need years to mature before they reach anything approaching their potential.

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