Chapter 7- Evolution (Part- 1 )
1. Which of the following correctly describes the process of gene expression?
- DNA replication
- Transcription and translation
- Cell division
- Protein degradation
- 2 Clear All
2. Which enzyme is responsible for unwinding the DNA double helix during transcription?
- DNA polymerase
- RNA polymerase
- Helicase
- Ligase
- 3 Clear All
3. In eukaryotes, transcription takes place in the:
- Nucleus
- Cytoplasm
- Mitochondria
- Endoplasmic reticulum.
- 1 Clear All
4. Which of the following is involved in post-transcriptional modification of mRNA in eukaryotes?
- Spliceosome
- Ribosome
- RNA polymerase
- DNA polymerase
- 1 Clear All
5. The genetic code is said to be degenerate because:
- It contains repetitive sequences.
- It allows for multiple codons to code for the same amino acid.
- It is prone to mutations.
- It is unstable.
- 2 Clear All
6. Which of the following is a stop codon?
- AUG
- UAG
- UCA
- UGC
- 2 Clear All
7. Which of the following accurately describes the process of translation?
- RNA synthesis
- Protein synthesis
- DNA replication
- DNA repair
- 2 Clear All
8. The site of protein synthesis in a cell is the:
- Golgi apparatus
- Nucleu
- Ribosome
- Lysosome
- 3 Clear All
9. Which molecule carries amino acids to the ribosome during translation?
- mRNA
- tRNA
- rRNA
- DNA
- 2 Clear All
10. Which of the following is not a post-translational modification of proteins?
- Phosphorylation
- Glycosylation
- Splicing
- Acetylation
- 3 Clear All