Dictionary » P » Pattern formation

Pattern formation

pattern formation

(Science: cell biology) One of the classic problems in developmental biology is the way in which complex patterns are formed from an apparently uniform field of cells.

Various hypotheses have been put forward and there is now evidence for the existence of gradients of diffusible substances (morphogens) specifying the differentiative pathway that should be followed according to the concentration of the morphogen around the cell.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Gene Technology

... has a different-colored (lilac) intermediate. The electrophoresis pattern shown in the top row reveals a single enzyme present and corresponds ... If the band was from enzyme 1, the enzyme would have catalyzed the transformation of the uncolored pigment precursor to its lilac form. However, ...

See entire post
by jonmoulton
Tue Apr 10, 2012 3:57 pm
 
Forum: Genetics
Topic: Gene Technology
Replies: 1
Views: 898

Recombination in RNA viruses,Ruzic,Kovac

... ` acceptor ' RNA molecule to produce a new RNA containing genetic information from more than one source. In this paper we focus on this type ... the presence of recombinant and hence `mosaic' sequences, the tree-like pattern is often replaced by a more complicated `network' that indicates ...

See entire post
by anakovacevic
Sat Jun 12, 2010 8:28 pm
 
Forum: Cell Biology
Topic: Recombination in RNA viruses,Ruzic,Kovac
Replies: 2
Views: 24685

Re:

... confused. My reading tells me that the action of antibiotics is transformation - passing on damaged genes to other cells which all eventually ... grow when they are further from the source of the antibiotic. The exact pattern of inhibition/growth depends on the medium (e.g. agar) used, and ...

See entire post
by biohazard
Tue May 18, 2010 6:52 am
 
Forum: Microbiology
Topic: dispersal of death (bacterial)
Replies: 3
Views: 1684

Cytoplasmic Determinants/Signal Induction

... Together, cytoplasmic determinants and signal induction determine the pattern formation of organisms by influencing genetic expression.

See entire post
by lychee
Thu May 13, 2010 2:24 am
 
Forum: Cell Biology
Topic: Cytoplasmic Determinants/Signal Induction
Replies: 3
Views: 11988

question about position of proto and meta xylem in plant

... lignification. As for their relative positions, it depends on the pattern of growth- whether it is centrifugal( as in stems where the growth ... development of xylem starts from the periphery of the Stele with the formation of the protoxylem and gradually proceeds towards the pith or medulla ...

See entire post
by SauronTheConqueror
Thu Jan 21, 2010 3:33 pm
 
Forum: Botany Discussion
Topic: question about position of proto and meta xylem in plant
Replies: 1
Views: 1804
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 2,444 times. 
What links here | Related changes | Permanent link