BIOSC-101 Lecture Notes - Lecture 18: Facultative Anaerobic Organism, Anaerobic Respiration, Obligate Anaerobe
21 Dec 2020
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Explain the three factors that contribute to genetic diversity in prokaryotes. Three factors contribute to this genetic diversity. Mutation rates are low, but mutations accumulate rapidly because generation times are short and populations are large. After repeated rounds of division, most of the offspring cells are genetically identical to the original parent cell. However, if errors occur during dna replication, some of the offspring cells may differ genetically. Individuals that are genetically better equipped for their environment tend to survive and reproduce at higher rates than other individuals. High diversity from mutations allow for rapid evolution. Is the combining of dna from two sources. Prokaryotic dna from different individuals (different cells) can be brought together by: Movement of genes among individuals from different species is called horizontal gene transfer. Distinguish among the following sets of terms: photoautotrophs, chemoautotrophs, photoheterotrophs, and chemoheterotrophs; obligate aerobe, facultative anaerobe, and obligate anaerobe.
