Eukaryotes

Some articles on eukaryotes:

Meiome - Origin and Function
... Meiosis is ubiquitous among eukaryotes ... Eukaryotes arose from prokaryotes more than 1.5 billion years ago, and the earliest eukaryotes were likely single-celled organisms ... To understand meiosis in eukaryotes, it is necessary to understand (1) how meiosis arose in single celled eukaryotes, and (2) the function of mitosis ...
Corepressor - Function - Eukaryotes
... In eukaryotes, a corepressor is a protein that binds to transcription factors ... In the absence of corepressors and in the presence of coactivators, transcription factors upregulate gene expression ...
Microbial Mat - Role in The History of Life - Origin of Eukaryotes
... The time at which eukaryotes first appeared is still uncertain there is reasonable evidence that fossils dated between 1,600 million years ago and 2,100 million years ago represent eukaryotes, but the ... There is still debate about the origins of eukaryotes, and many of the theories focus on the idea that a bacterium first became an endosymbiont of an anaerobic ...
Crown Eukaryotes
... Crown eukaryotes are an artificial group of eukaryotic organisms found at the top of molecular phylogenetic trees including both eukaryotes and prokaryotes ... They are thus not a crown that excludes simpler eukaryotes, but correspond roughly to the initial radiation of eukaryotes ...
Eukaryota - Origin of Eukaryotes - Relationship To Archaea
... Eukaryotes are more closely related to Archaea than Bacteria, at least in terms of nuclear DNA and genetic machinery, and one controversial idea is to place them with Archaea in the clade Neomura ... However, in other respects, such as membrane composition, eukaryotes are similar to Bacteria ... Three main explanations for this have been proposed Eukaryotes resulted from the complete fusion of two or more cells, wherein the cytoplasm formed from a eubacterium, and ...