molecular clock

常见例句

However, the origin time inferred by molecular clock is always earlier than that by the fossil record. This approach is still controversial.
然而，利用分子钟方法所得出的不同门类起源时间总是早于化石记录，因此分子钟与化石记录的矛盾仍十分突出。
But what has made this molecular clock so useful for forensic anthropologists over the past quarter-century is the fact that it stops dead when someone dies.
但为何这个分子时钟在过去四分之一世纪中对于法医学家如此有用呢？究其实是因为某人死去时它突然停止，凝滞了死亡瞬间。
As a molecular clock and genetic marker, superoxide dismutase has been widely used in evolutionary studies, population genetics, and identification of different strains in the same species.
因此，超氧化物歧化酶作为分子钟或分子标记已被广泛应用于生物进化研究、群体遗传结构分析以及品系鉴定。

Ptacek and his colleagues foresee ways in which understanding the molecular action of PTCy could lead to new ways to control the food clock and regulate metabolism despite shifts in the timing and amount of calories ingested.
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