Cells can regulate gene expression through which of the following mechanisms (check all that apply): mRNA processing transcription Translation Post-translational modifications chromatin structure/DNA packaging mRNA stability
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This process is tightly regulated at multiple stages to ensure that the correct genes are expressed at the correct time and in the correct amount. Show more…
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Md.Daniyal A.
Regulation of gene expression in eukaryotes can occur: at the post-transcriptional level, by changes in mRNA stability. at the post-translational level, by modifications to activate proteins. at the chromatin level, by changes in the state of condensation of chromatin. all options are correct at the transcriptional level, mediated by specific proteins called transcription factors.
Madhur L.
Each answer box represents a mechanism by which eukaryotes can regulate gene expression. Determine which of the five mechanisms each example represents. Not all examples will be used. Activity of transcription apparatus: Transcriptional repressors compete with activators for DNA binding sites. Gene inversion does not cause loss of genetic information but may affect regulation of the inverted genes. Changes in chromatin structure. RNA processing. RNA interference. Initiation of translation. Alternative splicing produces different transcripts from the same gene. miRNAs direct cleavage of specific transcripts, usually at the 3' UTR of the target transcript. RNA granules control the availability of mRNA for translation. Acetylation of histones facilitates transcription.
Sri K.
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