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.
Dictionary > Rolling circle mechanism
You will also like...

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

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

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

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..