Step 1: Understanding the Process of Protein Synthesis.
The process of protein synthesis involves two key stages: transcription and translation. Transcription is the process where mRNA is synthesized from DNA, while translation is the process where the mRNA is used to synthesize proteins.
Step 2: Analysis of options.
- (A) Translation: Translation is the process by which proteins are synthesized with the help of m-RNA. This is the correct process.
- (B) Transcription: Transcription is the process of creating m-RNA from a DNA template, not protein synthesis.
- (C) Reverse transcription: This refers to the process where RNA is reverse-transcribed into DNA, which occurs in some viruses, not in regular protein synthesis.
- (D) Replication: Replication is the process of copying DNA, not related to protein synthesis.
Step 3: Conclusion.
The process of protein synthesis with the help of m-RNA is called Translation, making option (A) the correct answer.
Construct and label a transcription unit from which the RNA segment given below has been transcribed. Write the complete name of the enzyme that transcribed this RNA. 
Student to attempt either option-(A) or (B):
(A) Write the features a molecule should have to act as a genetic material. In the light of the above features, evaluate and justify the suitability of the molecule that is preferred as an ideal genetic material.
OR
(B) Differentiate between the following: