DNA分子中一条链的碱基摩尔数之比为A∶C∶G∶T＝1∶1．5∶2∶2．5，则其互补链中嘌呤碱基与嘧啶碱基的摩尔数之比为

A．5∶4                      B．4∶3                       C．3∶2                      D．3∶4

DNA分子中一条链的碱基摩尔数之比为A∶C∶G∶T＝1∶1.5∶2∶2.5，则其互补链中嘌呤碱基与嘧啶碱基的摩尔数之比为

A. 4∶3                        B. 5∶4                        C.3∶2                                  D.3∶4

DNA分子中一条链的碱基摩尔数之比为A∶C∶G∶T＝1∶1.5∶2∶2.5，则其互补链中嘌呤碱基与嘧啶碱基的摩尔数之比为 (    )

A．5∶4              B．4∶3         C．3∶2                D．3∶4

DNA分子中一条链的碱基摩尔数之比为A∶C∶G∶T＝1∶1.5∶2∶2.5，则其互补链中嘌呤碱基与嘧啶碱基的摩尔数之比为

A. 5∶4              B. 3∶4           C. 3∶2            D. 4∶3

DNA分子中一条链的碱基摩尔数之比为A∶C∶G∶T＝1∶1.5∶2∶2.5，则其互补链中嘌呤碱基与嘧啶碱基的摩尔数之比为                         (     )

A．5∶4           B．4∶3            C．3∶2            D．3∶4