9. Which of the following statements about gene regulation is not true? ORNA interference is the inhibition of mRNA translation by siRNA's or miRNA's literally blocking access to the mRNA transcript or causing it to degrade. O Alternative RNA splicing in eukaryotes can produce many different polypeptides from a single mRNA sequence by interpreting differing mRNA segments as introns or exons and splicing them accordingly. O DNA methylation can reduce or halt DNA transcription as DNA is negatively charged and the added methyl is negatively charged causing the methylated DNA to supercoil becoming inaccessible to RNA polymerase. O Some operons such as the lac operon can be controlled through both positive and negative gene regulation. O Eukaryotic gene regulation may involve modifying access to genes, transcriptional controls, mRNA modifications, translational controls, and post-translation protein degradation.

9. Which of the following statements about gene regulation is not true? ORNA interference is the inhibition of mRNA translation by siRNA's or miRNA's literally blocking access to the mRNA transcript or causing it to degrade. O Alternative RNA splicing in eukaryotes can produce many different polypeptides from a single mRNA sequence by interpreting differing mRNA segments as introns or exons and splicing them accordingly. O DNA methylation can reduce or halt DNA transcription as DNA is negatively charged and the added methyl is negatively charged causing the methylated DNA to supercoil becoming inaccessible to RNA polymerase. O Some operons such as the lac operon can be controlled through both positive and negative gene regulation. O Eukaryotic gene regulation may involve modifying access to genes, transcriptional controls, mRNA modifications, translational controls, and post-translation protein degradation.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter29: Transcription And The Regulation Of Gene Expression

Section: Chapter Questions

Problem 16P

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