A high point (perhaps one of several) on an adaptive landscape; selection tends to drive the genotype composition of the population toward a combination corresponding to an adaptive peak. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... Full article >>>
Wright's explanation for stasis was that organisms come to occupy adaptive peaks. In order to evolve to an other, higher peak, the species would first have to pass through a valley of maladaptive intermediate stages. Full article >>>
Eldredge, N: 1992. Macroevolutionary Dynamics: Species, Niches and Adaptive Peaks, McGraw-Hill Eldredge, N: 1995. Reinventing Darwin: The Great Evolutionary Debate, Weidenfeld and Nicholson ... Full article >>>
(Date:7/24/2008)...In the life of a cell, the response to DNA damage ...repair itself, commit suicide, or grow uncontrolla...blished in the July 25th issue of Cell , scientis... way that cells respond to DNA damage through a pr...ing points to a new pathway for the development of...
(Date:7/24/2008)...re Proteins (NSP), a new family of genes discovere...r Research and Molecular Medicine in Temple Univer... involved in apoptosis or programmed cell death. ,...Sang, then a doctoral student at the University an...niversity and the Cardeza Foundation, and Antonio ...
(Date:7/23/2008)...into a domestic renewable fuel source could genera... of North America,s entire consumption needs and l...missions (GHGs), according to US research publishe...ysics, Environmental Research Letters . , The j... Benefits of Converting Manure to Biogas, has imp...
(Date:7/23/2008)...dy shows that popular fish oil supplements have an...nds in human skin. But whether that effect is detr...ns a mystery. , The omega-3 fatty acids found in...vascular health and other diseases related to chro...y properties. But insufficient inflammation during...
... depend on medications such as Ritalin to quell sy... (ADHD), scientists have struggled to pinpoint how...he University of Wisconsin-Madison is now starting...ournal Biological Psychiatry, UW-Madison researche...frontal cortex (PFC), a region of the brain that i...
...s light on the molecular mechanisms underlying axo...m C.elegans. In a study published today in the ope...ave characterised a new protein, UNC-69, required ...racts with UNC-76 in a protein complex likely to b...ons - a process that drives axon growth and helps ...
... drawer, shirts in the shirt drawer, the time-hono...ned in youth. But what parts of the brain are use...y other item, and how does such learning take plac...S) investigators has identified an area of the bra...he advanced online Nature that they have identifie...
...ic discovery could herald the introduction of fast...n a paper published in the May edition of Nature B...nipulated a process that occurs naturally througho...ol. , "The process, called RNA interference, bloc...nd viruses," said research leader and Director of ...