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Multiple Choice
Which of the following is not involved in the control of gene expression in eukaryotes?
A
DNA replication
B
RNA splicing
C
Transcription factors
D
Histone modification
Verified step by step guidance
1
Understand the concept of gene expression control in eukaryotes, which involves various mechanisms that regulate how genes are turned on or off, and how their products are synthesized.
Identify the role of RNA splicing in gene expression. RNA splicing is a process that modifies the pre-mRNA transcript by removing introns and joining exons, which is crucial for producing mature mRNA that can be translated into proteins.
Examine the function of transcription factors in gene expression. Transcription factors are proteins that bind to specific DNA sequences to regulate the transcription of genetic information from DNA to mRNA.
Explore histone modification as a mechanism of gene expression control. Histone modifications, such as acetylation and methylation, alter the chromatin structure and affect the accessibility of DNA to transcription machinery, thereby influencing gene expression.
Recognize that DNA replication is not directly involved in the control of gene expression. DNA replication is the process of copying the DNA molecule before cell division, and while it is essential for cell proliferation, it does not regulate how genes are expressed.