1. The first step in initiation of transcription is the recognition of the promo
ID: 25947 • Letter: 1
Question
1. The first step in initiation of transcription is the recognition of the promoter region in DNA by base pairing with a short RNA sequence inside of RNA polymerase.2. Locating the regulatory regions of a gene in eukaryotes is complicated by the fact that these sequences are often scattered and distant on the chromosomes from the start site of transcription.
3.The presence of introns in protein coding genes creates an opportunity for the regulation and variation of gene expression in eukaryotes.
4. DNA methylation and histone acetylation are two forms of epigenetic modifications, meaning that they create heritable patterns of gene expression.
Explanation / Answer
1. The first step in initiation of transcription is the recognition of the promoter region in DNA by base pairing with a short RNA sequence inside of RNA polymerase.
2. Locating the regulatory regions of a gene in eukaryotes is complicated by the fact that these sequences are often scattered and distant on the chromosomes from the start site of transcription.
3.The presence of introns in protein coding genes creates an opportunity for the regulation and variation of gene expression in eukaryotes.
4. DNA methylation and histone acetylation are two forms of epigenetic modifications, meaning that they create heritable patterns of gene expression.
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