Question: Which enzyme synthesizes tRNA?
Answer:
- RNA polymerase III synthesizes tRNA (transfer RNA).
- Pol III is one of the three types of RNA polymerases found in cells and is specifically responsible for transcribing tRNA genes into tRNA molecules.
- During tRNA synthesis, Pol III recognizes specific DNA sequences known as tRNA genes.
- As Pol III moves along the DNA template strand, it adds complementary RNA nucleotides to the growing tRNA chain, following the base-pairing rules (A with U, G with C).
| Enzyme | Description | Function |
| RNA Polymerase III | Enzyme | Catalyzes the synthesis of various types of RNA, including tRNA |
| Substrate | DNA template | Synthesizes RNA using a DNA template |
| Function | Synthesis of tRNA and other small RNAs | Essential for the production of functional tRNA molecules |
| Transcription Type | Pol III transcribes specific genes | Recognizes and transcribes genes encoding tRNA and other RNAs |
| Promoter Recognition | Specific DNA sequences | Binds to promoter regions of Pol III genes |
| Initiation | Assembly of transcription initiation complex | Forms a pre-initiation complex at the promoter |
| Elongation | Addition of nucleotides to the growing RNA chain | Adds complementary RNA nucleotides to the growing RNA molecule |
| Termination | Recognition of termination signals | Halts transcription and releases the synthesized RNA |
| Regulation | Controlled by regulatory factors | Activity can be regulated by various cellular signals |
Important Questions about Enzymes
- Enzymes MCQs
- Inhibition in enzymes
- Which enzyme digests starch?
- Which enzyme digests protein?
- which enzyme is present in saliva?
- Which enzyme is not present in succus entericus?
- Which enzyme breaks down protein in the stomach?
- Which enzyme converts fibrinogen to fibrin?
- Which enzyme converts glucose into alcohol?
- Which enzyme digests fat?
- Which enzyme digests milk protein?
- Which enzyme is used in PCR?
- Which enzyme unzips the DNA double helix?
- Which liver enzyme increases with alcohol?
- Which enzyme cuts DNA?
- Which enzyme catalyzes the first step of glycolysis?
- Which enzyme binds DNA fragments together?
- Which enzyme transcribes DNA into RNA?
- which enzyme adds new nucleotides?
- Which enzyme digests cellulose?
- Which enzyme separates the two strands of DNA?
- Which enzyme converts carbohydrates into glucose?
- Which enzyme removes RNA primer?
- Which enzymes help in digestion?
- Which enzyme works best in acidic conditions?
- Which enzyme synthesizes tRNA?
- Which enzyme secreted by pancreas?
- Which enzyme converts maltose into glucose?
- Which vitamins work as coenzyme?