What is the woman most concerned about
A. Check on what’s for dinner.
B. Go running before they eat.
C. Go to the lab briefly.
D. See if they have lots of work.
查看答案
What time is the conversation taking place
A. The woman forgot making orange juice.
B. The woman didn’t see orange juice.
C. The man broke the container of juice.
D. The man drank the juice.
What is the woman most concerned about
A. Hot weather,
Being delayed.
Catching the bus.
D. Living well.
What is the woman most concerned about
A. Watching TV.
B. Listening to the radio.
C. Swimming the channel.
D. waiting for someone.
通常遗传学中的连锁分析难以区分同一染色体上相距很远的基因和非同源染色体上独立分配的基因，特别是在两个基因间交换值大于40%、接近50%时。 请设计一个体细胞遗传学实验来判断人类中一个抗药性标记基因，一个控制营养的标记基因，是在同一染色体上相距很远的位置还是位于非同源染色体上。 (注意在这两个实验中均不能采取原位分子杂交的方法)
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