Introduction to Regulation of Gene Expression quiz #3 Flashcards
Introduction to Regulation of Gene Expression quiz #3
You can tap to flip the card.
Control buttons has been changed to "navigation" mode.
1/7Skip to main content
The enhancer shown in the diagram is able to regulate transcription of which genes?
Enhancers can regulate transcription of genes that are located at a distance, sometimes even on different chromosomes, depending on the specific enhancer and its interactions. Which of the following external environmental factors does not influence gene expression? A) Temperature B) Light C) Gravity D) Nutrient availability
C) Gravity Which of the following are true regarding epigenetics? A) It involves changes to the DNA sequence. B) It can affect gene expression without altering the DNA sequence. C) It is always permanent. D) It does not affect phenotype.
B) It can affect gene expression without altering the DNA sequence. Why is regulation of gene expression important?
Regulation of gene expression is important because it allows cells to produce the right proteins at the right time, which is essential for cellular function, development, and adaptation to environmental changes. Which of the following statements is true about genetic expression? A) It is not influenced by environmental factors. B) It is a static process. C) It can be regulated at multiple levels. D) It only occurs in multicellular organisms.
C) It can be regulated at multiple levels. What are the five key stages at which gene expression can be regulated in eukaryotic cells?
The five key stages are chromatin rearrangements, transcriptional control, post-transcriptional control, translational control, and post-translational control. At which stage do prokaryotic cells primarily regulate gene expression, and what does this stage involve?
Prokaryotic cells primarily regulate gene expression at the transcriptional control stage, which involves regulating RNA polymerase binding to the promoter and the initiation of transcription.
06:40
