When restriction endonuclease cut the DNA can generate ()
A. 5′sticky end
B. 3′sticky end
C. blunt ends
D. single stranded gap
E. sticky ends
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Second messengers include ()
A. cAMP
B. cGMP
Ca2+
D. IP3
E. DAG
The probes used in hybridization of nucleic acids include ()
A. oligonucleotide probe
B. genomic DNA probe
C. cDNA probe
D. RNA probe
E. lower prob
Gene Diagnosis can be applied to ( )
A. Inherited diseases
B. Infective diseases
C. Tumors
D. Prenatal genetic testing
E. terrible burns
which is not belong to the screening method of recombinant DNA molecules ( )
A. resistance to an antibotic
B. chromatography
C. immunochemical screening
D. PCR technology
E. marker rescuer
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