All ribosomes (in both eukaryotic and prokaryotic cells) are made of two subunits — one larger and one smaller. In eukaryotes, these pieces are identified by scientists as the 60-S and 40-S ...

Prokaryotes do not have mitochondria. Interestingly, one widely accepted theory of eukaryotic evolution, known as the endosymbiotic theory, suggests that mitochondria originated from free-living ...

How protein machinery binds and wraps DNA to start replication Date: March 6, 2012 Source: DOE/Brookhaven National Laboratory Summary: Scientists have deciphered molecular-level details of the ...

Id: 038070 Credits Min: 3 Credits Max: 3 Description Develops a basic understanding of biological topics relevant to students in the health sciences. Course will introduce students to biochemistry, ...

Eukaryotes are thought to have originated through a process known as endosymbiosis, in which an ancestral prokaryotic cell engulfed another, forming a mutually beneficial relationship. Over time, the ...

In addition to DNA polymerase, DNA replication also requires several other enzymes including a helicase to unwind the double-stranded template DNA, as well as a primase to assemble a short RNA primer.

The researchers investigate a range of prokaryotic and eukaryotic cell types to determine a) how cell volume in prokaryotes can eventually act to constrain a cell's membrane surface area required ...

A new study, which appears in the current issue of the journal Nature Ecology & Evolution, challenges a popular scenario put forward to explain the arrival of the first eukaryotic organisms.