Question

question 74
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according to the central dogma, which is the correct flow of genetic
information?
protein -> rna -> dna
dna -> protein -> rna
dna -> rna -> protein
rna -> dna -> protein

Explanation:

The Central Dogma of molecular biology describes the flow of genetic information. DNA is first transcribed into RNA (messenger RNA specifically in most cases). Then, the RNA is translated into proteins. This is a fundamental concept in biology. The other options are incorrect as they do not follow the established Central Dogma pathway. For example, proteins are the end - product (not the starting point) in the normal flow of genetic information as per the Central Dogma, and the direct flow from DNA to protein without RNA intermediary (as in the second option) does not occur. The flow from RNA to DNA is a special case (reverse - transcription) that occurs in some viruses but is not the normal flow described by the Central Dogma for cellular organisms.

Answer:

DNA → RNA → Protein