Which of the following is(are)not necessary for protein synthesis at the time and place where synthesis occurs?
A)ribosomes
B)DNA
C)mRNA
D)amino acids
E)tRNA

Question

Quizplus · Accepted Answer

While DNA contains the instructions for protein synthesis, it does not directly participate in protein synthesis at the time and place where it occurs. Instead, a complementary copy of a gene is made in the form of mRNA, which carries the information to the ribosomes where the actual synthesis of the protein occurs. Ribosomes are necessary for protein synthesis because they are the site of translation, where mRNA is read and translated into a sequence of amino acids using tRNA molecules. Amino acids are the building blocks of proteins, so they are also required for protein synthesis to occur. tRNA molecules are necessary because they bring amino acids to the ribosome during translation.

Which of the Following Is(are)not Necessary for Protein Synthesis at the Time