Microbiology MCQ // 7

   31.  EcoR1 is an example of :

a.      Exonuclease

b.      Adaptor molecule

c.       Restriction endonuclease

d.      DNA gyrase

   32.  Taq polymerase is extracted from:

a.      Bacillus magaterium

b.      Escherichia coli

c.       Thermophilus aquaticus

d.      Salmonella

   33.  Which is most common form of DNA:

a.      A-DNA

b.      B-DNA

c.       C-DNA

d.      D-DNA

    34.  DNA regions that can be transcribed into RNA are called structural genes:

a.      Operator

b.      Promoter genes

c.       Regulatory genes

d.      Structural genes

    35.  Horizontal gene transfer is common in:

a.      Bacteria

b.      Humans

c.       Fungi

d.      Al the living organisms