The nuclear DNA molecule controls the manufacture of proteins by the following process:
A)pieces of the DNA molecule break off and travel to the site of protein manufacture
B)the appropriate code is copied and transported by messenger RNA to the site of protein manufacture
C)the appropriate code is copied and transported by transfer RNA to the site of protein manufacture
D)none of the above

Question

Quizplus · Accepted Answer

The process described in option B is known as transcription, in which a complementary messenger RNA (mRNA) molecule is synthesized from a sequence of DNA. This mRNA molecule then moves out of the nucleus and into the cytoplasm where it delivers the genetic information to the ribosomes, where it will direct the synthesis of proteins in a process called translation. Therefore, the appropriate code is copied and transported by messenger RNA to the site of protein manufacture. Options A and C are not correct because they do not explain the exact process of protein synthesis.

The Nuclear DNA Molecule Controls the Manufacture of Proteins by the Following