Why was what scientists discovered while studying DNA in 1977 scientifically important?(1 point)

Question

Responses

It proved the existence of DNA.
It proved the existence of DNA.

It challenged previous thinking about mRNA.
It challenged previous thinking about mRNA.

It showed that DNA is found within genes.
It showed that DNA is found within genes.

It confirmed that mRNA in viruses were an outlier.

Answer 1

The correct response is:

It confirmed that mRNA in viruses were an outlier.

In 1977, scientists discovered that some viruses contained RNA instead of DNA as their genetic material, which led to significant advancements in understanding the role of RNA and mRNA in the genetic coding process. This challenged the previous dogma that DNA was the sole carrier of genetic information in all organisms and highlighted the complexity of genetic systems in nature.