three domains - detailed description
| Bacteria (eubacteria) | Archaea | Eukarya |
| Most bacteria (formerly monerans) | Methanogens | Protista |
| | Thermophiles | Fungi |
| | Halophiles | Animalia |
| | | Plantae |
|
| Eubacteria Bacteria | Archaea | Eukarya |
| Nuclear envelope | Absent | Absent | Present |
| Membrane bound organelles | Absent | Absent | Present |
| Peptidoglycan in cell wall | Present | Absent | Absent |
| Membrane Lipids | Unbranched Carbons | Some branched | Unbranched |
| RNA Polymerase (enzyme that reads DNA) | One Kind | Several | Several |
| Initiator amino acid for protein synthesis | Formyl methionine | Methionine | Methionine |
| Introns (non-coding genes) | Rare | Present | Present |
| Response to streptomycin, Chloramphenicol | Growth inhibited | Growth not inhibited | Growth not inhibited |
| Histones with DNA | Absent | Present | Present |
| Circular chromosome | Present | Present | Absent |
| Ability to grow at temps >100° C | NO | Some species | No |
- Comparison Between Gram Positive Bacteria And Gram Negative Bacteria
Differences between Gram positive bacteria and Gram negative bacteria Gram positive bacteria Gram negative bacteria 1. The bacteria remain coloured with Gram staining even after washing with alcohol or acetone The bacteria...
- Comparison Of Different Types Of Muscles
Striated (skeletal) muscles Non-striated (smooth or visceral) muscles Cardiac muscles 1. Striations present Absent Absent 2. Voluntary in action Involuntary...
- Comparison Between Flying Birds And Flightless Birds
Flying birds (Carinatae) Flightless birds (Ratitae) 1. Usually small in size Usually large in size 2. Well developed wings Poorly developed wings...
- Comparison Between Vertebrates And Invertebrates
Vertebrates Invertebrates 1. Notochord is present in the embryo and vertebral column in the adult Notochord and vertebral column are absent in embryo and adult 2. Gill...
- Comparison Between Dicot Stem And Monocot Stem
Dicot stem Monocot stem 1. Ground tissue is differentiated into cortex, endodermis, pericycle, stele and pith Undifferentiated ground tissue 2. Vascular bundles are limited in...