Which statement about restriction enzymes are false?
A. Restriction enzymes cut DNA at specific sequence called recognition sites
B. A restriction enzyme always cut DNA to leave the same sequence at the ends
C. Some restriction enzymes cut the two DNA strands at slightly different points within their recognition site to make a 'sticky' end
D. Restriction enzymes are exonucleases rather than endonucleases
Answer: Option D
This Question Belongs to Biotechnology Engineering >> Methods And Techniques In Applied Biology
Which of the following would not possible to address using a Northern Blot?
A. Location of restriction sites in a particular gene
B. Spatial expression of a particular gene
C. Temporal expression of a particular gene
D. mRNA size
In southern blotting . . . . . . . . is separated by gel electrophoresis
A. DNA
B. m-RNA
C. t-RNA
D. Protein
A restriction enzyme AluI with a 4-bp recognition site produces restriction fragments that should be
A. 4096 bp
B. 256 bp
C. 16 bp
D. 436 bp
A. To add base at the 3' end of the DNA
B. To add base at the 5' end of the DNA
C. To carry out nick translation
D. To transfer phosphate at the 3' end of the DNA
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