Evolution of Microbes Flashcards
What do all living organisms, without exception, possess
Ribosomes
What are ribosomal RNA’s
building blocks of ribosomes involved in translating mRNA to proteins
What is phylogenetics
The evolutionary relationships between organisms
what is the eocyte hypothesis?
There are only 2 domains - bacteria and archaea - with eukaryotes embedded in archaea
what makes up the prokaryotes
Archaea and bacteria
what is larger, eukaryotes or prokaryotes?
eukaryotes
What are the differences in the structures of prokaryotes and eukaryotes?
Prokaryotes: Haploid, Nucleoid and no organelles
Eukaryotes: Diploid, nucleus and organelles
What is LUCA?
Last Universal Common Ancestor
When is LUCA estimated to have appeared
4.5 billion years ago
what is meant by anoxic?
No O2 in atmosphere
What are cyanobacteria
The first organisms on earth to conduct oxygenic photosynthesis
what is endosymbiosis
one organism lives inside an other one to form a single organism
What resulted in the origin of eukaryotes
endosymbiosis of bacteria in archaea
what is the org. of organelles in eukaryotes
bacteria
What has a greater metabolic diversity, Eukaryotes or bacteria and archaea
bacteria and archaea