Which molecule carries information from DNA to ribosomes?

Study for DNA History, Replication, and Protein Synthesis Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Master your exam content!

Multiple Choice

Which molecule carries information from DNA to ribosomes?

Explanation:
RNA carries the genetic message from DNA to the ribosomes. Through transcription, the cell copies a gene into messenger RNA (mRNA) in the nucleus. This mRNA then exits to the cytoplasm and is read by ribosomes, which translate the encoded sequence into a chain of amino acids to form a protein. The nucleotide sequence in mRNA determines the order of amino acids, guiding the synthesis process with the help of transfer RNA and ribosomal RNA. DNA serves as the information store, lipids don’t carry genetic instructions, and proteins are the products rather than the message itself. This flow—DNA to RNA to protein—explains why RNA is the information carrier to ribosomes.

RNA carries the genetic message from DNA to the ribosomes. Through transcription, the cell copies a gene into messenger RNA (mRNA) in the nucleus. This mRNA then exits to the cytoplasm and is read by ribosomes, which translate the encoded sequence into a chain of amino acids to form a protein. The nucleotide sequence in mRNA determines the order of amino acids, guiding the synthesis process with the help of transfer RNA and ribosomal RNA. DNA serves as the information store, lipids don’t carry genetic instructions, and proteins are the products rather than the message itself. This flow—DNA to RNA to protein—explains why RNA is the information carrier to ribosomes.

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