What is the process whereby DNA sequence in a gene is copied into mRNA?

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Prepare for the ECPI Anatomy and Physiology AandP Exam 1. Utilize multiple choice questions and flashcards with detailed explanations. Enhance your knowledge and be exam-ready!

Multiple Choice

What is the process whereby DNA sequence in a gene is copied into mRNA?

Explanation:
Copying a gene’s DNA sequence into an RNA molecule is transcription. During transcription, RNA polymerase binds near the gene, unwinds the DNA, and reads the template strand to synthesize a complementary RNA strand in the 5' to 3' direction. The produced mRNA carries the genetic message from the nucleus to the ribosome, where it is read during translation to assemble a protein. In eukaryotes, the initial mRNA is processed with a 5' cap, a poly-A tail, and splicing before it exits the nucleus. The other processes refer to different steps: translation makes protein from mRNA, replication copies DNA, and transposition moves DNA segments within the genome.

Copying a gene’s DNA sequence into an RNA molecule is transcription. During transcription, RNA polymerase binds near the gene, unwinds the DNA, and reads the template strand to synthesize a complementary RNA strand in the 5' to 3' direction. The produced mRNA carries the genetic message from the nucleus to the ribosome, where it is read during translation to assemble a protein. In eukaryotes, the initial mRNA is processed with a 5' cap, a poly-A tail, and splicing before it exits the nucleus. The other processes refer to different steps: translation makes protein from mRNA, replication copies DNA, and transposition moves DNA segments within the genome.

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