Question

relate biological processes across the three domains in relation to evolution.

Answer 1

• phylogeny is the evolutionary history or relationship between various organisam.
• After formation of earth First life on earth was a cell found underneath ocean .After that as a result of accumulation of oxygen ,eukaryotes life or multicellular life formed.
• Domains of life are of three types they are Archaea,bacteria and eukarya.
• Classification of domain into three was based on difference in cells rRNA nucleotide sequence , sensitivity of antibiotics and cell membrane lipid structure.
• Archaea and bacteria are prokaryotic ,fully made up microorganisms.
• Eukarya are eukaryotes containg plants, microorganisms and animals.
• Common ancestor of Archaea and eukarya are 2bya whereas of all domains is 3bya.
• In archaea no one have peptidoglycon,bacteria contain peotidoglpept and eukarya contain no peptidoglycon.
• Archaea not sensitive to certain antibiotics,bacteria sensitive to antibacterial antibiotics and eukarya resistant to antibacterial antibiotic.