What is an exception to the central dogma of molecular biology?

Answer 1

The "central dogma" states information goes from DNA to RNA to Protein in a retrovirus it goes from RNA to DNA back to RNA to Protein. The central dogma as it is called has so many exceptions now that it is no longer considered central.

Answer 2

A brief on the central dogma first:

double stranded DNA >> single stranded RNA >> proteins

Some exceptions (or violations) to the central dogma of molecular Biology are:

• Some microorganisms only contain RNA (and have no DNA)
• Some have RNA that is reverse transcripted into DNA and then back into RNA
• Some viruses have single stranded DNA
• Some viruses have double stranded RNA

Answer 3

One exception to the central dogma is the process of reverse transcription, where RNA is converted back into DNA by the enzyme reverse transcriptase. This is seen in retroviruses like HIV, allowing them to integrate their genetic material into the host cell's genome.

Answer 4

the ability of some viruses to transfer information from RNA to DNA