DOWNLOAD MOBILE APPLICATION TO LEARN MORE: MCQs OF BIOLOGY CLASS 12
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: MCQs OF BIOLOGY CLASS 12
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: MCQs OF BIOLOGY CLASS 12
Table of Contents
MCQs OF BIOLOGY CLASS 12
1.Stem cells are capable of
A.self renewal
B.potency
C.both A and B
D.none of above
2.A technique that measures degree of genetic similarity between pools of DNA sequences is called
A.Annealing
B.denaturation
C.hybridization
D.none of above
3.λ phage vector can carry up to
A.20 kb fragments
B.30 kb fragments
C.40 kb fragments
D.50 kb fragments
4.In gel electrophoresis fragments are separated on basis of
A.size
B.charge
C.both A and B
D.none of above
5.For cloning to occur, bacteria’s plasmid’s must be cut by
A.restriction enzymes
B.polymerase enzyme
C.helicase enzyme
D.gyrase enzyme
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6.A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as
A.southern blotting
B.northern blotting
C.polymerase chain reaction
D.DNA replication
7.The Southern blotting technique depends on
A.similarities between the sequences of probe DNA and experimental DNA
B.similarities between the sequences of probe RNA and experimental RNA
C.similarities between the sequences of probe protein and experimental protein
D.the molecular mass of proteins
8.Problems in obtaining large amounts of proteins encoded by recombinant genes can often be overcome by using
A.BACS
B.expression vectors
C.YACS
D.all of these
9.Agrobacterium tumefaciens is
A.a disease in humans that causes loss of sight
B.a bacterium that can be used to introduce DNA into plants
C.a fungi that is used to produce antibiotics in large amounts
D.a disease in humans that causes loss of weight
10.In genetic engineering, a chimera is
A.an enzyme that links DNA molecules
B.a plasmid that contains foreign DNA
C.a virus that infects bacteria
D.a fungi
| 1. C 2. A 3. C 4. C 5. A | 6. C 7. A 8. B 9. B 10.B |
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