Question

The diagram represents the ‘central dogma’ of molecular biology. Choose the correct combination of labeling.
(A) A- protein, B- RNA, C-DNA, D- translation, E- transcription
(B) A- RNA, B- DNA, C- protein, D- transcription, E- translation
(C) A- transcription, B- translation, C- protein, D- DNA, E- RNA
(D) A-DNA, B-RNA, C-protein, D- translation, E- translation
(E) A-DNA, B-RNA, C-protein, D- transcription, E- translation

Answer 1

Central dogma clearly explains the hereditary information flow in the biological system. All the cells follow this central dogma for the flow of the genetic information in the body. It mainly takes place in the three processes as replication, transcription and translation.

Complete Answer:
- Central dogma refers to the way of the stream of hereditary material. This central dogma was proposed by the Crick.
- It consists of the three significant cycles, the first cycle deals with the duplicating of parental DNA to frame a daughter DNA particles with indistinguishable nucleotide successions called as replication. The second process in the central dogma is the transcription.
- Transcription is the process in which the hereditary data encoded in DNA are replicated absolutely into RNA.
- The last advanced process is the interpretation or the translation, whereby the hereditary data encoded in mRNA is converted back into a polypeptide/protein with a specific grouping of amino acids. enzyme. Hence the central dogma involves the following process as A- DNA, B-RNA, C-protein, D- transcription, E- translation.

Thus the option (E) is correct.

Note: The transcription is the process in which the DNA is converted into mRNA and it takes place with the help of RNA polymerase enzyme. The exceptions in the central dogma are reverse transcription and the prion disease. Due to these exceptions the central dogma changes.