Podcast
Questions and Answers
What sits at the base of the nucleosome near DNA, binding to the linker region of the DNA?
What sits at the base of the nucleosome near DNA, binding to the linker region of the DNA?
- Histone H3
- Histone H1 (correct)
- Histone H4
- Histone H2A
What is the space between adjacent nucleosomes approximately?
What is the space between adjacent nucleosomes approximately?
- 30 nm
- 14 nm (correct)
- 8 nm
- 2 nm
What was the result when isolated chromatin was treated with nuclease and analyzed by agarose gel electrophoresis?
What was the result when isolated chromatin was treated with nuclease and analyzed by agarose gel electrophoresis?
- A DNA ladder of fragments that differed in length by 100 bp
- A single long DNA strand
- A DNA ladder of fragments that differed in length by 200 bp (correct)
- No visible changes
Which type of DNA is generally not active due to its compact nature?
Which type of DNA is generally not active due to its compact nature?
What plays an important role in regulating all DNA processes, including transcription, repair, and replication?
What plays an important role in regulating all DNA processes, including transcription, repair, and replication?
What proteins 'read' the chromatin modifications and bind to them at specific regions, thus facilitating gene transcription?
What proteins 'read' the chromatin modifications and bind to them at specific regions, thus facilitating gene transcription?
What is the fundamental repeating unit of chromatin?
What is the fundamental repeating unit of chromatin?
What surrounds the nucleus in eukaryotic cells?
What surrounds the nucleus in eukaryotic cells?
What provides a scaffold for the packaging of the entire genome?
What provides a scaffold for the packaging of the entire genome?
What concept was used to describe how cell fates are established during development?
What concept was used to describe how cell fates are established during development?
