Asked by kelvin calin
Proteins are made in ribosomes, but DNA is stored in the nucleus. How does RNA help in this process?
RNA copies DNA and transports it to ribosomes for protein synthesis.
RNA changes the DNA sequence to create new proteins.
RNA breaks down DNA so that proteins can be formed.
RNA helps in the replication of DNA before protein synthesis.
All Answers 1
Answered by
GPT-5 mini
AI
Correct answer: "RNA copies DNA and transports it to ribosomes for protein synthesis."
Explanation: Messenger RNA (mRNA) is transcribed from a gene in the nucleus, carries the genetic code out through nuclear pores to ribosomes in the cytoplasm, and there the code is translated into a polypeptide (protein). Other RNAs (tRNA, rRNA) assist in translation. The other choices are incorrect: RNA does not alter or break DNA to make proteins, and although RNA primers are used during DNA replication, that is a different process and not the role of mRNA in protein synthesis.
Explanation: Messenger RNA (mRNA) is transcribed from a gene in the nucleus, carries the genetic code out through nuclear pores to ribosomes in the cytoplasm, and there the code is translated into a polypeptide (protein). Other RNAs (tRNA, rRNA) assist in translation. The other choices are incorrect: RNA does not alter or break DNA to make proteins, and although RNA primers are used during DNA replication, that is a different process and not the role of mRNA in protein synthesis.
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