经过对某生物体内的核酸的化学分析得知，该生物体内的核酸中，嘌呤占40%，嘧啶占60%，由此可以判断_刷题宝

题干

经过对某生物体内的核酸的化学分析得知，该生物体内的核酸中，嘌呤占40%，嘧啶占60%，由此可以判断（）

A：此生物体内的核酸一定是DNA

B：此生物可能只含RNA或同时含有DNA和RNA

C：该生物一定不含DNA而只含RNA

D：若此生物含DNA，则一定是双链的

上一题下一题 0.0难度选择题更新时间:2017-05-15 01:54:16

答案(点此获取答案解析）

B

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