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The eukaryotes ( / juːˈkærioʊts, - əts / yoo-KARR-ee-ohts, -əts) constitute the domain of Eukarya or Eukaryota, organisms whose cells have a membrane-bound nucleus. All animals, plants, fungi, and many unicellular organisms are eukaryotes.
- Holozoa
Holozoa (from Ancient Greek ὅλος (holos) 'whole', and ζῷον...
- Holomycota
Holomycota or Nucletmycea are a basal Opisthokont clade as...
- Holozoa
- Structure
- Origin
- Etymology
Eukaryotic cells are usually much bigger than prokaryotes. They can be up to 10 times bigger. Eukaryote cells have many different internal membranes and structures, called organelles. They also have a cytoskeleton. The cytoskeleton is made up of microtubules and microfilaments. Those parts are very important in the cell's shape. Eukaryotic DNA is p...
Because the cell organelles of eukaryotes have different (polyphyletic) origins, the question arises as to whether the group is a unified clade or not. It is certain that the protistsare not. Cell organelles are specialised units which carry out well-defined functions, like mitochondria and plastids. It is fairly clear now that all or most of these...
The feature that defines eukaryotes is that their cells have nuclei. Eukaryote comes from the Greek words εὖ (eu, "well" or "good") and karyon, "nut" or "kernel", here meaning "nucleus".
Eukaryogenesis, the process which created the eukaryotic cell and lineage, is a milestone in the evolution of life, since eukaryotes include all complex cells and almost all multicellular organisms. The process is widely agreed to have involved symbiogenesis, in which archaea and bacteria came together to create the first eukaryotic common ...
Apr 19, 2024 · eukaryote, any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a nuclear membrane that surrounds the nucleus, in which the well-defined chromosomes (bodies containing the hereditary material) are located. Eukaryotic cells also contain organelles, including mitochondria (cellular energy exchangers), a Golgi ...
- The Editors of Encyclopaedia Britannica
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Eukaryotic DNA replication is a conserved mechanism that restricts DNA replication to once per cell cycle. Eukaryotic DNA replication of chromosomal DNA is central for the duplication of a cell and is necessary for the maintenance of the eukaryotic genome . DNA replication is the action of DNA polymerases synthesizing a DNA strand complementary ...
The Eukaryota include the organisms that most people are most familiar with - all animals, plants, fungi, and protists. They also include the vast majority of the organisms that paleontologists work with. Although they show unbelievable diversity in form, they share fundamental characteristics of cellular organization, biochemistry, and ...
Eukariota merupakan minoritas kecil dari semua makhluk hidup. [8] Namun, karena ukuran mereka jauh lebih besar, biomassa kolektif eukariota di seluruh dunia diperkirakan sekitar setara dengan prokariota. [8] Eukariota pertama kali berkembang sekitar 1,6-2,1 miliar tahun yang lalu.
