guanine造句
There are just four kinds: adenine, thymine,
guanine and cytosine.
只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.
The DNA base composition is 32.6 - 33.1 mol %
guanine plus cytosine.
DNA(脱氧核糖核酸)的G+C 摩尔百分含量为32.6—33.1.
It is a layer of
guanine crystals which glow at night.
这是的氨基羟尿环水晶层数发光在晚上.