碱基臵换
参考答案:
某一碱基配对性能改变或脱落所致的突变。
下列属于权属档案工作业务的环节的是()。
A.收集
B.计算
C.整理
D.鉴定
E.检索
The sicentific research on how to protect the rare animals is ________. Many scientsts are working hard
to find new way to raise the animals by man.[ ]
A.in danger
B.in control
C.in order
D.in progress