Question

Match the event or term with the proper process from the drop-down menu. Process terms may be used once, more than once, or not at all.

Group of answer choices are:   [ Choose 1 answer per term]            DNA replication            G1 phase            Post-translational processing            Transcription            G2 phase            Post-transcriptional processing            S phase            Translation            Mitosis      

1.RNA polymerase

  

2.snRNPs

3.Initiator tRNA binds to mRNA

  

4. 5' Methylguanosine cap

  

5. Poly-adenylate tail

  

6. Spliceosome

  

7. Formation of peptide bond

  

8. Breaking phosphodiester bond

  

9. Termination factor protein

  

10. Formation of phosphodiester bonds

  

11. Removal of introns

Answer 1

1. RNA polymerase- Transcription. Explanation- RNA polymerase adds rNTPs to form mRNA during transcription.

2. snRNPs- Post-transcriptional processing. Explanation- These form the spliceosome complex during post transcriptional processing.

3. Initiator tRNA binds to mRNA- Translation. Explanation- Initiator tRNA is charged, thus called as aminoacyl-tRNA and it binds to mRNA.

4. 5' Methylguanosine gap- Post-transcriptional processing. Explanation- mRNA undergoes post transcriptional modification and a methylguanosine cap is added at the 5' end.

5. Poly- adenylate tail- Post-transcriptional processing. Explanation- mRNA undergoes post transcriptional modification and 200-300 Adenine residues are added at 3' end.

6. Spliceosome- Post-transcriptional processing. Explanation- mRNA undergoes post transcriptional modification and the introns are removed by spliceosome complex.

7. Formation of peptide bond- Translation. Explanation- A peptide bond is formed between two amino acids to form a polypeptide chain during translation.

8. Breaking of phosphodiester bond- Post-transcriptional processing. Explanation- Introns are removed from the primary transcript during post transcriptional modification by breaking of phosphodiester bonds.

9. Termination factor protein- Replication. Explanation- Termination of replication in prokaryotes depends on a terminator protein called Rho protein.

10. Formation of phosphodiester bonds- DNA replication. Explanation- During replication, new DNA strand is formed and DNA polymerase adds nucleotides to the existing strand by forming phosphodiester bond.

11. Removal of introns- Post-transcriptional processing. Explanation- Post transcriptional modification involves removal of non-ciding introns.