Question

Correct sequence of code transfer during polypeptide formation is

• A. DNA, mRNA, tRNA and amino acids
• B. DNA, tRNA, rRNA and mRNA
• C. mRNA, tRNA, DNA and amino acids
• D. rRNA, DNA, mRNA and tRNA

Answer 1

The correct option is A DNA, mRNA, tRNA and amino acids

The correct sequence of code transfer during polypeptide formation is DNA $\to$ mRNA $\to$ tRNA $\to$ amino acids. This is known as the central dogma of molecular biology. The information in DNA is carried by messenger RNA to the site where proteins can be made, which is the ribosome. According to the information in the mRNA, tRNA brings in the correct amino acid in the respective sequence, eventually forming the polypeptide.