What is the woman most concerned about
A. It’s the best place to eat.
B. Italian food is the best.
C. They like it all the time.
D. They are disappointed in its recent change.
查看答案
What is the woman most concerned about
A. Buy a new television set.
B. Find another repairman.
C. Use a check to pay.
D. They say about the restaurant.
在连锁遗传中,(abc)/(ABC)×(abc)/(abc)(括弧内表示基因的次序没有定)的杂交,后代个体数量最少的类型是(abC)/(abc)和(ABc)/(abc)(括弧内表示基因的次序没有定)。由此可以确定三个基因位点的顺序是A(a)-C(c)-B(b)或B(b)-C(c)-A(a)。( )
A. 对
B. 错
在abc三杂合体的测交中得到如下结果:a++、ab+、+6+、+bc、++c、a+c六种表型的个体数依次为810、62、89、828、88、103,则这三个基因的排列顺序为______。
两对非等位基因在完全连锁和不完全连锁的情况下,F1代同样产生出亲本型和重组型两类配子。( )
A. 对
B. 错