Nucleic acids and chromatin
Nucleic acids and chromatin

This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.

Free course

Nucleic acids and chromatin

Summary of Section 8

  1. Eukaryotic DNA is compacted through a hierarchical series of events, from nucleosomes to 10nm and 30 nm fibres, then through further stages to the chromomena fibres, which are attached to scaffolds to form loops. In preparation for mitosis, these fibres are further compacted to prevent physical damage.

  2. Chromosomes within the interphase nucleus occupy defined regions.

  3. DNA within the eukaryotic interphase nucleus is in a dynamic and variable state. Scaffolds to which the DNA fibres are attached serve both structural roles in further compaction and as delineators of gene domains.

S377_1

For further information, take a look at our frequently asked questions which may give you the support you need.

Have a question?
Free Courses

OpenLearn has over 800 free courses across all our subjects designed by our academic experts. From 1 to 100 hours, introductory to advanced, you can start learning at any time and all for free.