Questions tagged [transcription]

The process that produces a complementary strand of RNA from a section of DNA or (rarely) other RNA.

The process that produces a complementary strand of RNA from a section of DNA or (rarely) other RNA.

188 questions
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Making sense out of the visual representation of transcription

Most people are familiar with the following diagram. Some genomic DNA with a promoter region, exons and introns. This is transcribed into RNA that is then translated into a polypeptide. When we look closer at the strand that is being transcribed we…
Kevin
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TSS of a gene vs TSS of a transcript

I have an annotation from gencode.vM1.annotation of a mouse. Exons, genes, transcripts and UTR are listed there. For each feature a start and end positions are present. I need to find a TSS for each gene. Will it be wrong to define one TSS for all…
Alina
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What was the first gene(s) found to code for ncRNA

I could not find a source that states what the first gene found to code for ncRNA was. Someone told me, however, it was a gene that coded for either rRNA or tRNA. To this point in time I have had no other confirmation that this is true.
TGupta99
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Why isn’t prokaryotic mRNA modified post-transcriptionally like eukaryotic mRNA?

Eukaryotic mRNA is subject to addition of a methyl-guanosine cap at the 5’ end, addition of 100-200 adenosines to the 3’ end, and splicing. Why don’t these occur in prokaryotes? Is it because there is no exonuclease and intron in prokaryotes?
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Anticodon Translation Question

Could somebody please explain the answer for (c). I assumed that since transcription started at the bolded/underlined T/A base pair, the second codon would be UCU? Thanks!
kikisq
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Control of gene expression

Eukaryotes have many genes, so how does RNA polymerase recognize a gene needed to be transcripted?
Quang Huy
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