Question

Which of the following life processes is evolved around RNA?
A. Metabolism
B. Translation
C. Splicing
D. All of these

Answer 1

Hint: RNA is abbreviated for Ribose nucleic acid. All the metabolic processes evolved around the RNA. Moreover, translation and transcription are the processes of the RNA and splicing is a part of the transcription.

Complete step by step answer: RNA is the first and oldest genetic material. Evidence that suggests that the essential and necessary life processes evolved around the RNA are metabolism, translation, splicing, etc. RNA acts both as genetic material and catalyst.
-RNA participates in the process of protein synthesis or translation. The process of protein synthesis is a metabolic process. Moreover, the RNA is formed from the DNA by the process of transcription. In the processing of the RNA, the last step is the tailing and splicing. Splicing is a process in which all exons are removed with the help of spliceosomes from the immature mRNA. This process takes place in eukaryotes as in eukaryotic organisms monocistronic DNA is found.
Thus, based on the above information we can conclude that the metabolism, translation, splicing life processes evolved around RNA.
Hence, the correct answer is option (D).

Note: DNA is preferred over RNA as a genetic material due to the following reasons –
1. The free 2’ hydroxide of the RNA makes it easily degradable and more labile.
2. The presence of thymine that is 5-methyl uracil instead of uracil.
3. RNA mutates at a faster rate as it is unstable. Also, the organisms having only RNA genome can directly code for proteins and express the characters.