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In transcription, the DNA sequence of a gene is transcribed (copied out) to make an RNA molecule.
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DNA serves as the molecular basis of heredity through replication, expression, and translation processes. Replication creates identical DNA strands, while transcription converts DNA into messenger RNA (mRNA).
Learn about the discovery and properties of the genetic code and how to use the codon table in this Khan Academy article.
Transcript. Gene regulation controls when and how much a gene is expressed. Chromatin regulation and DNA methylation are two ways to regulate genes. Chromatin regulation involves histone modifications, while DNA methylation adds methyl groups.
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Transcription involves rewriting genetic information from DNA to mRNA, with RNA polymerase playing a crucial role. In eukaryotic cells, DNA to mRNA transcription occurs within the nucleus, producing pre-mRNA.
How the sequence of nucleotide bases (As, Ts, Cs, and Gs) in a piece of DNA is determined.
DNA transcribes into RNA, with exons coding for proteins and introns removed by spliceosomes. The mRNA acquires a 5' prime cap and 3' prime poly-A tail for protection and translation promotion. RNA editing, a rare process, alters RNA sequences through insertion, deletion, or base substitution, impacting viral enzymes and functions.