KA1- Organisation of DNA Flashcards
What does eukaryote mean?
Has a true membrane bound nucleus
What does prokaryote mean?
Doesn’t have a true membrane bound nucleus
How can DNA be organised?
In a linear or circular arrangements
Where is circular DNA found?
Prokaryotes like bacteria
What eukaryotes is circular DNA also found in?
Mitochondria and chloroplasts
What is tiny circular DNA called?
Plasmids
What must happen to a DNA strand to stop it becoming tangled + fit into a cell
Organised
What are histones?
Special proteins that DNA is tightly coiled around to stop it tangling
Do prokaryotes have chloroplasts?
No
Do prokaryotes have mitochondria?
No
Do prokaryotes have ribosomes?
Yes
Do eukaryotes have ribosomes?
Yes
Describe one organisational difference between prokaryotic and eukaryotic chromosomal DNA
Prokaryotes have circular chromosomes and eukaryotes have linear.
Other than the nucleus, where can DNA also be found in eukaryotic cells?
Mitochondria
Chloroplast
Plasmids (in yeast)
