Prokaryote
Автор:
Jesse Russell,Ronald Cohn, 126 стр., издатель:
"Книга по Требованию", ISBN:
978-5-5110-9852-4
High Quality Content by WIKIPEDIA articles! The prokaryotes (Template:Pron-en or /pro??k?ri?ts/) are a group of organisms that lack a cell nucleus (= karyon), or any other membrane-bound organelles. The organisms that have a cell nucleus are called eukaryotes. Most prokaryotes are unicellular, but a few such as myxobacteria have multicellular stages in their life cycles. The word prokaryote comes from the Greek ???- (pro-) "before" + ?????? (karyon) "nut or kernel". Prokaryotes do not have a nucleus, mitochondria, or any other membrane-bound organelles. In other words, neither their DNA nor any of their other sites of metabolic activity are collected together in a discrete membrane-enclosed area. Instead, everything is openly accessible within the cell, some of which is free-floating. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным...