Indeed, complex multicellularity has only evolved five separate times, always within eukaryotes. This observation underlies a ...

Every living organism falls into one of two groups: eukaryotes or prokaryotes, with cellular structure determining which group an organism belongs to. Prokaryotes are unicellular and lack a nucleus ...

Planctomycetes Are Important for Theories of the Origin of Eukaryotes and Their Nuclei Why are planctomycetes important for understanding evolution of eukaryotes? There are two major types of ...

In eukaryotes, DNA is tightly wound into a complex called chromatin. Thanks to the process of chromatin remodeling, this complex can be "opened" so that specific genes are expressed. Various ...

Eukaryotes, on the other hand, utilize the Kozak sequence to start translation. The Kozak sequence surrounds the start codon (AUG) and has a consensus sequence of (GCC)GCCRCCAUGG, where R ...

Bacteria are amongst the simplest of organisms – they are made of single cells. Their cell structure is simpler than the cells of animals, plants and fungi.

Every living organism falls into one of two groups: eukaryotes or prokaryotes, with cellular structure determining which group an organism belongs to. Prokaryotes are unicellular and lack a nucleus ...