Differential lengths of poly-A tails affect mRNA stability. Pre-transcriptional control Transcriptional control Translational control Post-translational control

Define terms related to Molecular Biology of Transcription and RNA Processing Protein bridge SL - 1 UBF - 1 ICR guanylyl transferase PAP

Determine whether the following will increase or decrease gene expression: mRNA degradation mRNA capping Binding of a transcriptional activator Ubiquitination of a protein and targeting to the proteasome

The most common type of termination signal in E. Coli is a symmetrical inverted repeat of GC rich sequences followed by about 7 As that forms a stable stem-loop structure in the RNA, which disrupts its association with the DNA template and terminates transcription. true or false

Which of the following statements is false? a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a gene a missense mutations replaces one amino acid with a different amino acid a mutation in a promoter is unlikely to alter the sequence of the polypeptide encoded by a gene a mutation in a transcriptional terminator is unlikely to alter the sequence of a protein encoded by a gene. a frameshift mutation changes the sequence of a protein 0000

Which of the following is not a general description of the gene expression regulation mechanisms that operate in eukaryotic organisms processing level control replication level control post translational leve control transcriptional level control translational level control

A string of 8 adenine nucleotides in the mRNA is required for function of an intrinsic transcription terminator in bacteria. True False

Which of the following statements is false? a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a gene a mutation in a transcriptional terminator is unlikely to alter the sequence of a protein encoded by a gene. a mutation in a promoter is unlikely to alter the sequence of the polypeptide encoded by a gene a missense mutations replaces one amino acid with a different amino acid a frameshift mutation changes the sequence of a protein 000 0

In eukaryotic transcription, which of the following is not included in the initiation of transcription? Group of answer choices RNA polymerase II TATA box Holoenzyme AAUAAA consensus sequence

Which method is most likely used to regulate the expression of a gene that is active during embryonic development but then silenced for the rest of the life of the individual? Histone modification Post translational modifications Alternative Splicing Controlling RNA export from the nucleus