Question

+Discuss the evolutionary characteristics of a given microbe. Provide examples

+Discuss the evolutionary characteristics of a given microbe. Provide examples

Homework Answers

Answer #1

EXAMPLE

Cyanobacteria

EVOLUTIONARY CHARACTERISTICS :

Microbial evolution refers to the genetically driven change that that occur in microorganisms and that are retained over time.

The evolution of bacteria has progressed over billions yrs since the precambrian time.

Cyanobacteria or a blue green algae is a gram negative bacteria that evolved between 2.3 to 2.7 billion yrs ago. This prokaryote produces oxygen as a byproduct of its photosynthetic process.

Typically they formed motile filaments reffered to hormogony. They have been located in freshwater, soil and rock.

These organism had evolved photosynthetic reaction centres and became the first oxygen producing autotrophs.

Cyanobacteria, melainabacteria, sericytochromatia evolved from a non-photosynthetic common ancestors.

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