Chromatin organization and function genetics
7 important questions on Chromatin organization and function genetics
What is mitotic epigenetics?
- parental imprinting, difference in phenotype when inherited trough the mother or father.
- Random X-chromosome inactivation --> calico cat, fur colour one epigenetical change in one cell will be present in all daughter cells.
- Random silencing of specific genes --> tumour suppressor
What are epigenetical mechanisms?
- Histone modifications, PTM on the N terminal tail of the histones.
DNA methylation and histone modification are linked.
- RNA dependent silencing
- Higher order chromatin, 3D interaction of the chromatin, Chromosomes can silence each other.
How does methylation of C DNA work?
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
Why are transposons dangerous?
What is a DNA fingerprint?
How can methylation be detected?
What is chromatin immunoprecipitation?
- cross link DNA
- break the nucleosome in very small parts. --> small nucleosome parts with DNA attached to it.
- Primary anti body that recognises methylated DNA.
- secondary antibody is linked to iron.
- methylated DNA can than be subtracted with a magnet.
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding