Multiple Choice
Which of the following best describes the flow of genetic information according to the central dogma of molecular biology?
1. Introduction to Biochemistry
Central Dogma
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Which molecule is translated into an amino acid sequence during protein synthesis?
A
rRNA
B
DNA
C
tRNA
D
mRNA
Verified step by step guidance1
Understand the central dogma of molecular biology, which explains the flow of genetic information: DNA is transcribed into RNA, and RNA is translated into proteins.
Recognize the role of mRNA (messenger RNA) in protein synthesis. mRNA carries the genetic code from DNA in the nucleus to the ribosome, where translation occurs.
Learn the function of rRNA (ribosomal RNA), which forms the structural and functional components of the ribosome but is not translated into proteins.
Understand the role of tRNA (transfer RNA), which brings amino acids to the ribosome during translation but is not itself translated into proteins.
Conclude that mRNA is the molecule that is translated into an amino acid sequence during protein synthesis, as it contains the codons that specify the sequence of amino acids in the protein.
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