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प्रश्न
The recognition sequence of restriction enzymes is generally ______ nucleotide long.
विकल्प
2 to 4
4 to 8
8 to 10
14 to 18
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उत्तर
The recognition sequence of restriction enzymes is generally 4 to 8 nucleotides long.
Explanation:
The sequences recognized by restriction enzymes are 4 to 8 nucleotides long and characterized by a particular type of internal symmetry. Consider the specific sequence recognized by the enzyme EcoRI.
संबंधित प्रश्न
State the role of DNA ligase in biotechnology.
Enlist different types of restriction enzymes commonly used in rDNA technology? Write about their role.
The technique which involves addition or deletion of genes is ______.
Match the List I with List II and List ill. Select the correct option.
| List I | List II | List ill | |||
| i. | Hind III | a. | Agarose ge | 1. | Six base pairs |
| ii. | pBR322 | b. | Agrobacterium | 2. | Selectable marke |
| iii. | T-DNA | c. | Ampicillin | 3. | Elution |
| iv. | DNA | d. | Recognition sequenc | 4. | Transgenic plant |
The rDNA technology has provided a method to control the nematode parasite Meloidogyne incognita. Explain the principle involved in this technique.
The most important feature in a plasmid to serve as a vector in gene cloning experiment is ______.
What would happen when one grows a recombinant bacterium in a bioreactor but forget to add antibiotic to the medium in which the recombinant is growing?
Identify the desirable characteristics for a plasmid used in rDNA technology from the following.
- Ability to multiply and express outside the host in a bioreactor.
- A highly active promoter.
- A site at which replication can be initiated.
- One or more identifiable marker genes.
- One or more unique restriction sites.
The plasmid of Agrobacterium tumefaciens that is now modified as a cloning vector is ______.
Plasmid is ______.
