Dictionary > Rolling circle mechanism

Rolling circle mechanism

rolling circle mechanism
(Science: molecular biology) A mechanism of dNA replication in many viral dNAs, in bacterial f factors during mating and of certain DNAs in gene amplification in eukaryotes.
dNA synthesis starts with a cut in the – strand at the replication origin, the 5′ end rolls out and replication starts at the 3′ side of the cut around the intact circular DNA strand. Replication of the 5′ end (tail) takes place by the formation of okazaki fragments.


You will also like...

The process of photosynthesis
Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

Still freshwater and plants
Still Freshwater & Plants

Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

"Cronopio dentiacutus", a prehistoric mammal (an illustration)
Mammalian Ancestors

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

Chromosomes X and Y and Sex Determination
Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Stem
Stems

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

Lentic community
Freshwater Communities & Lentic Waters

Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

Related Articles...

No related articles found

See all Related Topics