Multiple Choice
Which of the following genetic elements is transcribed into a single mRNA?
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15. Gene Expression
Central Dogma
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What is the central dogma of molecular biology?
A
RNA is transcribed into DNA, which is then translated into protein.
B
DNA is transcribed into RNA, which is then translated into protein.
C
Proteins are transcribed into RNA, which is then translated into DNA.
D
DNA is translated directly into protein without RNA involvement.
Verified step by step guidance1
The central dogma of molecular biology describes the flow of genetic information within a biological system.
The process begins with DNA, which serves as the genetic blueprint for all living organisms.
Step 1: Transcription - DNA is transcribed into RNA. During this process, the enzyme RNA polymerase reads the DNA sequence and synthesizes a complementary RNA strand.
Step 2: Translation - The RNA, specifically messenger RNA (mRNA), is then translated into a protein. Ribosomes read the mRNA sequence in sets of three nucleotides, called codons, and assemble the corresponding amino acids into a polypeptide chain.
This flow of information from DNA to RNA to protein is the correct sequence described by the central dogma of molecular biology.
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