题目
第5题
Genetic engineering may be defined as
A.the altering of normal cell reproduction
B.a branch of applied chemistry
C.a procedure that holds little promise
D.a study on life-saving enzymes
第6题
Genetic engineering may be defined as________.
A. the altering of normal cell reproduction
B. a branch of applied chemistry
C. a procedure that holds little promise
D. a study on life-saving enzymes
第7题
A.the altering of normal cell reproduction
B.a branch of applied chemistry
C.a procedure that holds little promise
D.a study on life-saving enzymes
第8题
A.the altering of normal cell reproduction
B.a branch of applied chemistry
C.a procedure that holds little promise
D.a study on life-saving enzymes
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