根头就是跟头。跟头，汉语词语，读作“gēn tou”，指身体倒翻，即筋斗。
一根头发通常从每个毛囊中生长约三年，然后脱落，然后一根新头又生长。
A hair normally grows from each follicle for about three years, is then shed, and a new hair grows.
例如，一根头根上找到的dna分子通常情况下就足以确定身份了。
For example, the amount of DNA found at the root of one hair is usually sufficient.
说明根头库在控制块根同化物方面起有重要作用，并且这一过程主要主要由SS完成。
The top part of root tuber play an important role in regulating the assimilated matter, which was accomplished mainly by SS.
应用推荐