Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Possible genetic modifications that can cause epigenetic changes in gene expression include:
A- all answers are correct
B- histone acetylation
C- chromatin remodeling
D- histone variant localization 
e- DNA methylation
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- Histones can be modified to turn genes on and off. Which type of chromatin is associated with transcriptionally active regions of the DNA?arrow_forwardThe study of Epigenetics includes which of the following? (Choose all that apply) 1.The vertical transmission of histone modifications 2.The vertical transmission of genetic mutations 3.How Histone acetylation affects gene transcription 4.How DNA methylation impacts chromatin structure 5.How genetic mutations impact gene transcription 6.The horizontal transmission of genesarrow_forwardhe human phenotype is regulated by epigenetic control of gene expression. Discuss the three main types of epigenetic regulation, illustrating your answer with examples of diseases arising from impairment of each of these processesarrow_forward
- What is the result when the core histones are acetylated via histone acetyltransferase? A) The result depends on which histone is modified. B) The DNA becomes more tightly associated with the core. O C) The DNA becomes less associated with the core. This modification has no effect on how tightly associated DNA will become with the core.arrow_forwardThe human phenotype is regulated by epigenetic control of gene expression. Discuss the three main types of epigenetic regulation, illustrating your answer with examples of diseases arising from impairment of each of these processes. 600 words.arrow_forwardWhat are the roles of histone deacetylation and histoneacetylation in gene regulation, respectivelyarrow_forward
- 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 proteasomearrow_forwardPlease asaparrow_forwardIf an organism's cells were to not want a specific sequence of DNA transcribed for a long period of time, which of the following processes below would most likely allow for this to happen? O DNA acetylation O DNA methylation O histone methylation O histone acetylationarrow_forward
- Describe how epigenetic changes underlie paramutation.arrow_forwardDescribe four differences between prokaryotic and eukaryotic gene expression.arrow_forwardHeterochromatin is chromatin that is very compact, containing genes that are silenced. What epigenetic modifications might you find in heterochromatin?arrow_forward
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