BIOL 1000 Lecture Notes - Lecture 22: Metagenomics, Nucleoid, Golgi Apparatus
21 Dec 2016
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Document Summary
Technique used to isolate and clone dna from environment which means we are able to study these species now. Archaea and bacteria are prokaryotes, while eukarya are eukaryotes. Archaea were recently discovered due to their extreme environment. Do not have cytosolic organelles (mainly golgi body and er) Prokaryotes have (cid:272)ytoskeleto(cid:374) that is a(cid:374)alogous to eukaryote"s (cid:894)(cid:374)ot very si(cid:373)ilar(cid:895) Due to lack of organelles the cytoplasm is very active and concentrated with macromolecules and ions. The full diversity of bacteria and archaea is unknown. Prokaryotic shape and function internal structures and functions. Dna that is separate from chromosomal unit and can replicate on its own. In prokaryotes they can be used and shared by different prokaryote species. The process of sharing is called horizontal gene transfer. Allows traits like antibiotic resistance to spread quickly. Archaeal ribosomes are different in structure but same size. Protein synthesis in archaeal is a combo of bacterial and eukaryotic.
