Advertisements
Advertisements
प्रश्न
Explain types of enzymes used in biotechnology?
Advertisements
उत्तर
| No | Type of enzyme | Examples | Functions |
| i. | Lysing enzyme | Lysozyme | Digesting bacterial cell walls |
| ii. | Cleaving enzymes (Molecular scissors) | Restriction endonucleases | An enzyme that cleaves a DNA duplex molecule at a particular base sequence, usually within or near a palindromic sequence |
| iii. | Synthesizing enzymes | Reverse transcriptase; DNA polymerase |
Reverse transcriptase: A viral enzyme that is capable of converting their RNA genome into a DNA copy DNA polymerase: It synthesizes DNA strand only in the 5′- to-3′ direction |
APPEARS IN
संबंधित प्रश्न
What are plasmids?
Name the most commonly used bioreactor and describe its working.
The technique which involves addition or deletion of genes is ______.
Polymerase chain reaction is most useful in ______.
Alu-I is obtained from which organism?
Restriction enzymes were discovered by ______.
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 DNA polymerase enzyme used in PCR is obtained from______.
Name the enzymes that are called molecular scissors.
Give a reason for the following:
The diagram given below represents vector pBr322 which was modified by a research scholar Dr. Rayon, but the vector was rejected by his guide.

