Which flow chart correctly describes steps that lead to the synthesis of proteins?
a
DNA → mRNA → tRNA
b
tRNA → mRNA → DNA
c
mRNA → tRNA → DNA
d
mRNA → tRNA → DNA
None of the options provided correctly describes the steps that lead to the synthesis of proteins. The correct process through which proteins are synthesized from DNA is known as the central dogma of molecular biology. The sequence is as follows:
DNA → RNA → Protein
A more detailed flow of this process would be:
DNA → mRNA (transcription) → Protein (translation)
During transcription, DNA is transcribed into messenger RNA (mRNA). The mRNA then exits the nucleus and goes to a ribosome in the cytoplasm, where it is translated into a protein with the help of transfer RNA (tRNA).
Therefore, the correct flow should be:
DNA (transcription) → mRNA → Protein (translation)
Since none of the provided options matches the correct flow, and assuming possible typographical errors, the closest correct answer would have looked something like this:
e
DNA → mRNA → Protein
Unfortunately, this option is not provided, so one might conclude that either the options are incorrect, or there has been a misinterpretation or misprint of the answer choices.