Chapter 6- Molecular Basis of Inheritance (Part- 2 )
1. In the lac operon of E. coli, the repressor protein binds to the operator in the presence of:
- Lactose
- Glucose
- Inducer
- RNA polymerase
- 2 Clear All
2. In DNA fingerprinting, the technique used to amplify specific DNA sequences is called:
- Polymerase chain reaction (PCR)
- Gel electrophoresis
- Southern blotting
- DNA sequencing
- 1 Clear All
3. The process by which a single gene can code for multiple polypeptides is called:
- Splicing
- Transcription
- Alternative splicing
- Translation
- 3 Clear All
4. Which of the following is an example of post-translational modification?
- DNA methylation
- RNA splicing
- Protein folding
- DNA replication
- 3 Clear All
5. Which of the following is an example of a post-transcriptional modification?
- Methylation of DNA
- Addition of a poly-A tail
- Translation of mRNA
- Replication of DNA
- 2 Clear All
6. A mutation that results in the insertion or deletion of nucleotides in a DNA sequence is known as:
- Missense mutation
- Nonsense mutation
- Frameshift mutation
- Silent mutation
- 3 Clear All
7. Which of the following can cause a mutation?
- RExposure to UV radiation
- Exposure to certain chemicals
- Errors during DNA replication
- All of the above
- 4 Clear All
8. The process by which genetic information is transferred from DNA to RNA is called:
- Translation
- Transcription
- Replication
- Mutation
- 2 Clear All
9. Which of the following is responsible for proofreading and correcting errors during DNA replication?
- DNA polymerase
- RNA polymerase
- Helicase
- Ligase
- 1 Clear All
10. The central dogma of molecular biology states that genetic information flows from:
- DNA to RNA to protein
- Protein to RNA to DNA
- RNA to DNA to protein.
- Protein to DNA to RNA.
- 1 Clear All