Tag: "radially" at biology news
How did bilaterally symmetric flowers evolve from radially symmetric ones?
How did bilaterally symmetric flowers evolve from radially
symmetric ones? To address this important question... surviving to the juvenile stage, than plants with radially
symmetric flowers. "This study reveals that natural selection can play a key role in the evolutio...
How butterflies got their spots: A 'supergene' controls wing pattern diversity
...ng to a wide range of mimetic pressures to produce radially
divergent, locally adapted wing patterns....
Tips from The Journal of Neuroscience
...nce(MGE), migrate tangentially to cortex, and then radially
to their final laminar position. The authors report that mice lacking Dab1, the intracellular adaptor protein necessary for Reelin signaling, had impaired laminar distribution, but the tangential migration was normal. To study the laminar migration, ...
Neurons find their place in the developing nervous system with the help of a sticky molecule
...of cells. From that zone, crawling neurons migrate radially
out toward the surface or "superficial" part of the developing cortex, giving rise to a laminar structure. Neurons forming layers 2 and 3, the focus of the current study, are born last and so must elbow their way through cells lying in earlier formed...
News tips from The Journal of Neuroscience
... they tried to place within a target: one of eight radially
arrayed circles. In a "rotation" condition, the cursor was rotated 45 counterclockwise, offsetting subject movements. In a "rotation plus strategy" condition, subjects were informed of the offset and given a strategy to cheat the system by aiming for...
USC researchers track down the stem cells that create feathers
...its unique functional morphology. For example, the radially
symmetric downy feathers found on chicks and on th...ated: the stem cell ring is horizontally placed in radially
symmetric downy feathers, but is tilted in bilaterally symmetric feathers, with the lower end of the...
Researchers find three major beetle groups coming up one testis short
.... While animals such as jellyfish and starfish are radially
symmetrical, bilateral symmetry is, hands down, the dominant body shape in the animal world, thanks in part to the drive for forward motion. That's not to say there is no precedent for such deviations from bilateralism. One well-known example is the...