Which of the following is NOT true of transcription / translation processes in both bacteria and eukaryotes?
Select one:
a. RNA polymerase reads the template DNA strand to produce the complementary mRNA transcript.
b. Translation of a polypeptide can occur before transcription of the mRNA is finished.
c. Polypeptide chains are formed by linking amino acids according to the sequence encoded by the mRNA associated with a ribosome.
I am not sure, but I am 95% sure it is B.
To determine which of the options is NOT true, let's evaluate each statement:
a. RNA polymerase reads the template DNA strand to produce the complementary mRNA transcript.
This statement is true for both bacteria and eukaryotes. During transcription, RNA polymerase binds to the DNA template strand and synthesizes a complementary mRNA molecule.
b. Translation of a polypeptide can occur before transcription of the mRNA is finished.
This statement is also true for both bacteria and eukaryotes. In prokaryotes (bacteria), transcription and translation occur simultaneously since there is no separation between the nucleus and the cytoplasm. In eukaryotes, transcription occurs in the nucleus, and the mRNA molecule must be transported to the cytoplasm for translation. Therefore, translation can begin before transcription is complete.
c. Polypeptide chains are formed by linking amino acids according to the sequence encoded by the mRNA associated with a ribosome.
This statement is also true for both bacteria and eukaryotes. During translation, the ribosome reads the mRNA sequence and binds the appropriate amino acids to create a polypeptide chain.
Based on the above analysis, it can be concluded that there is no option that is NOT true of transcription/translation processes in both bacteria and eukaryotes.