Ch 27 - Bacteria and Archaea (1 slide per page)-1

Circular 5 singular 1 uncopied chromosome a few have

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ular 5. Singular - 1 uncopied chromosome • a few have multiple copies 6. Not in a membrane bound nucleus • located in nucleoid (a light colored area of the cytoplasm) 7. Smaller - a lot fewer base pairs (bp) • 160k-12m base pairs vs 50m-250m bp in humans chromosomes Eukaryote chromosome 9 Prokaryote vs. Eukaryote Morphology Differences 8. Prokaryote chromosomes don’t have introns 10 Prokaryote vs. Eukaryote Morphology Differences 9. Most have plasmid DNA (also in a few eukaryotes) • Small rings of double-stranded DNA • Only have a few genes Ruptured E. coli cell • Often many plasmids in one cell • Replicate independently of chromosome • Are sometimes transferred between bacteria • Involved in: • metabolism of alternative nutrients when regular ones absent Figure 27.8 (Campbell et al 9 • antibiotic resistance (e.g. to fungal secretions) th ed) 11 Prokaryote vs. Eukaryote Morphology Differences 10. Prokaryotes and eukaryote ribosomes are structurally different Thus, some antibiotics can disrupt prok ribosomes but not euks 12...
View Full Document

This note was uploaded on 02/12/2014 for the course BIOLOGY 2011 taught by Professor Woo during the Fall '10 term at University of Central Florida.

Ask a homework question - tutors are online