Podcast
Questions and Answers
What can result in epigenetic effects?
What can result in epigenetic effects?
- Perpetuation of protein structures
- Both a and b (correct)
- Modification of a nucleic acid after it has been synthesized
- Creation of prions
How is hemimethylated DNA produced?
How is hemimethylated DNA produced?
- By the replication of methylated DNA (correct)
- By the binding of proteins to specific sequences
- By the inactivation of genes within heterochromatin
- By the perpetuation of protein structures
What is the role of proteins in nucleation of heterochromatin?
What is the role of proteins in nucleation of heterochromatin?
- They propagate along the chromatin fiber
- They modify nucleic acids after they have been synthesized
- They bind to specific sequences and cause heterochromatin nucleation (correct)
- They trigger the inactivation of genes within heterochromatin
What is the consequence of inactivation of genes within regions of heterochromatin?
What is the consequence of inactivation of genes within regions of heterochromatin?
What is a prion?
What is a prion?
What creates heterochromatin?
What creates heterochromatin?
Which protein is the key in forming mammalian heterochromatin?
Which protein is the key in forming mammalian heterochromatin?
What is the function of Rap1 in yeast in relation to heterochromatin formation?
What is the function of Rap1 in yeast in relation to heterochromatin formation?
What is the role of Polycomb group proteins (Pc-G) in gene regulation?
What is the role of Polycomb group proteins (Pc-G) in gene regulation?
What does a Polycomb response element (PRE) provide in gene regulation?
What does a Polycomb response element (PRE) provide in gene regulation?
Where are most methyl groups in DNA found?
Where are most methyl groups in DNA found?
What happens to a fully methylated DNA site during replication?
What happens to a fully methylated DNA site during replication?
What is the function of DNA methyltransferase?
What is the function of DNA methyltransferase?
What is the role of RNAi pathways in relation to heterochromatin formation?
What is the role of RNAi pathways in relation to heterochromatin formation?
What promotes the spreading of Sir3 and Sir4 in yeast?
What promotes the spreading of Sir3 and Sir4 in yeast?
Which protein initiates the formation of heterochromatin in yeast by binding to specific target sequences in DNA?
Which protein initiates the formation of heterochromatin in yeast by binding to specific target sequences in DNA?
