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【单选题】
探索遗传规律时,运用了“假说—演绎”法。下列叙述错误的是( )A.
“一对相对性状的遗传实验中 F 2 出现3∶1的性状分离比”属于假说内容
B.
“ F 1 (Dd)能产生两种类型的配子(D∶d＝1∶1)”属于演绎推理内容
C.
“决定相对性状的遗传因子在体细胞中成对存在”属于假说内容
D.
“测交实验”的目的在于对假说及演绎推理的结论进行验证
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反馈参考答案：
举一反三
【单选题】—What made you so angry?—______.
A.
Tom having been late again
B.
Tom to be late again
C.
Tom' s being late again
D.
Tom was late again
【单选题】Before he set up Genera, Dr Parton used to work for a British water company.
A.
Right
B.
Wrong
C.
Doesn't say
【单选题】Uncle Tom ________ an interesting story for the children.
A.
made from
B.
made out
C.
made up
D.
made of
【单选题】___taken away made his parents worried and they had to turn to the police for help.
A.
Tom’s
B.
Tom being
C.
Tom
D.
Tom’s being
【单选题】Tom ' s brother _____ me _____ Tom just now.
A.
make , to help
B.
make , help
C.
made , help
D.
made, to help.
【简答题】分离单糖苷、双糖苷、三糖苷采取哪种色谱法,洗脱顺序如何?
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