1. Two bacteria most useful in genetic engineering are
a)Rhizobium and Azotobacter
b)Nitrosomonas and Klebsilla
c)Escherichia and Agrobacterium
d)Rhizobium and Diplococcus
Answer: c) Escherichia and Agrobacterium
2. Transposon is known as
a)IS element
b)Jumping gene
c)conservative gene
d)co integrate gene
Answer: b) Jumping gene
3. The uptake of plasmid DNA into the bacterial cell is facilitated by the presence of --- in the medium
a) Calcium Chloride
b) Potassium chloride
c) Magnesium chloride
d) none of these
Answer: a) Calcium Chloride
4. The travel of gene expression and gene activation can be measured using which of the following?
a) Reporter gene
b) Marker gene
c)Gene sequences
d)Promoter element
Answer: b) Marker gene
5. The enzyme required to obtained wall free/ nacked protoplasts are
a) cellulase and proteinase
b) cellulase and pectinase
c) cellulase and amylase
d) amylase and pectinase
Answer: b) cellulase and pectinase
6. A synchronous culture is one in which the majority of cells proceed through
a) Lag phase
b) Log phase
c) exponential phase
d) each cell cycle phase (G1, S, G2 and M)
Answer: d) each cell cycle phase (G1, S, G2 and M
7. DNA molecules, identical except for different numbers of superhelical turns are called
a) Chain isomers
b) Topoisomers
c) Helical isomers
d) Geometrical isomers
Answer: b) Topoisomers
8. Application of embryo culture is in
a) clonal propagation
b) Production of alkaloids
c) Production of soma clonal variation
d)overcoming hybridisation barrier
Answer: d) overcoming hybridisation barrier
9. Haploid culture are got from
a) leaves
b) root tips
c) pollen grain
d) bud
Answer: c) pollen grain
10. Differentiation of shoot in plant tissue culture is controlled by
a)high auxin : cytokinin ratio
b) high cytokinin : auxin ratio
c) high gibberellin : cytokinin ratio
d) high gibberellin: auxin ratio
Answer: b) high cytokinin : auxin ratio
a)Rhizobium and Azotobacter
b)Nitrosomonas and Klebsilla
c)Escherichia and Agrobacterium
d)Rhizobium and Diplococcus
Answer: c) Escherichia and Agrobacterium
2. Transposon is known as
a)IS element
b)Jumping gene
c)conservative gene
d)co integrate gene
Answer: b) Jumping gene
3. The uptake of plasmid DNA into the bacterial cell is facilitated by the presence of --- in the medium
a) Calcium Chloride
b) Potassium chloride
c) Magnesium chloride
d) none of these
Answer: a) Calcium Chloride
4. The travel of gene expression and gene activation can be measured using which of the following?
a) Reporter gene
b) Marker gene
c)Gene sequences
d)Promoter element
Answer: b) Marker gene
5. The enzyme required to obtained wall free/ nacked protoplasts are
a) cellulase and proteinase
b) cellulase and pectinase
c) cellulase and amylase
d) amylase and pectinase
Answer: b) cellulase and pectinase
6. A synchronous culture is one in which the majority of cells proceed through
a) Lag phase
b) Log phase
c) exponential phase
d) each cell cycle phase (G1, S, G2 and M)
Answer: d) each cell cycle phase (G1, S, G2 and M
7. DNA molecules, identical except for different numbers of superhelical turns are called
a) Chain isomers
b) Topoisomers
c) Helical isomers
d) Geometrical isomers
Answer: b) Topoisomers
8. Application of embryo culture is in
a) clonal propagation
b) Production of alkaloids
c) Production of soma clonal variation
d)overcoming hybridisation barrier
Answer: d) overcoming hybridisation barrier
9. Haploid culture are got from
a) leaves
b) root tips
c) pollen grain
d) bud
Answer: c) pollen grain
10. Differentiation of shoot in plant tissue culture is controlled by
a)high auxin : cytokinin ratio
b) high cytokinin : auxin ratio
c) high gibberellin : cytokinin ratio
d) high gibberellin: auxin ratio
Answer: b) high cytokinin : auxin ratio
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