41. DNA synthesized from an RNA template is called
42. Which one of the following is not a protease?
43. The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is 6 bases long can be estimated to be
44. The substrate for restriction enzyme is
45. Hairy roots' induced in vitro by the infection of Agrobacterium rhizogenes, are characterized by
P. A high degree of lateral branching.
Q. Genetic instability of culture.
R. An absence of geotropism.
S. Poor biomass production.
P. A high degree of lateral branching.
Q. Genetic instability of culture.
R. An absence of geotropism.
S. Poor biomass production.
46. Match the items in Group I with their functions in Group II.
Group I
Group II
P. rol genes
1. Food and energy source
Q. Opines
2. Tumor formation
R. Virulence genes
3. Hairy root induction
S. aux and cyt genes
4. T-DNA transfer and integration
| Group I | Group II |
| P. rol genes | 1. Food and energy source |
| Q. Opines | 2. Tumor formation |
| R. Virulence genes | 3. Hairy root induction |
| S. aux and cyt genes | 4. T-DNA transfer and integration |
47. A vector derived from which one of the following viruses is used for high-frequency genomic integration of a transgene in animal cells?
48. In nature, Agrobacterium tumefaciens mediated infection of plant cells leads to
P. Crown gall disease in plants.
Q. Hairy root disease in plants.
R. Transfer of T-DNA into the plant chromosome.
S. Transfer of Ri-plasmid into the plant cell.
P. Crown gall disease in plants.
Q. Hairy root disease in plants.
R. Transfer of T-DNA into the plant chromosome.
S. Transfer of Ri-plasmid into the plant cell.