Question

Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component? A) RNA → DNA → RNA → protein B) DNA → RNA → protein C) protein → RNA → DNA D) DNA → amino acid → RNA → protein E) DNA → tRNA → mRNA → protein

Answer 1

Answer:

B) DNA → RNA → protein

Explanation:

• Gene directs the synthesis of a cellular component through what is called gene expression.
• During gene expression, information from the DNA is used to synthesis proteins, through the process of transcription followed by translation.
• Transcription is the process that involves use of information carried by DNA to generate messenger RNA, in the nucleus of a cell. Then translation which uses the information carried by the mRNA to generate proteins in the organelles known as ribosomes.