stabilizing selection
Stabilizing Selection
directional
The three characteristics of a supply curve are the slope, shift, and the curve's position. Together they help determine supply and demand trends.
An economy can be producing on the PPF curve only in theory. In reality, economies constantly struggle to reach an optimal production capacity.
Yes. An expansionary fiscal policy, or more optimistic growth expectations in the private sector will shift the aggregate demand (AD) curve upwards. The position of the AD curve is also affected by the central bank's inflation target, if the target falls, the AD curve will shift downwards. Monetary policy influences the slope of the AD curve as well as the position. If the central bank put strong emphasis on fighting inflation and little emphasis on stabilizing output, the AD curve will be flatter. The other way around will yield the opposite result.
Stabilizing Selection
stabilizing selection: when individuals near the center of the curve have a higher fitness than individuals at either end of the cure, keeping the center at its current location but narrows the overall graph directional selection: when individuals at one end of the curve have a higher fitness than individuals at the other end, or middle, causing the entire curve to move as the character trait changes disruptive selection: when individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle, causing the single curve to be cut into two These three types of selection are brought about by natural selection, so whichever one is favored, then the genes evolve in that specific direction. natural selection acts on the genotype, but the results are seen in the phenotype
It's usually called stabilizing selection.
I'm not sure what "stabilizing directional" selection is, but if you get out a bell curve graph... Stabilizing selection tends to select for individuals around the average, or mean, of a population, which technically makes the curve steeper. Directional selection shifts the average in one direction (shifts the whole curve in one direction). Disruptive selection creates two new averages, which means it splits the one curve into two, smaller, separate curves.
A normal curve. A Bell curve.
Disruptive selection
Why does OCC curve become flat after certain field current?
This type of natural selection is called directional selection and does not display a normal curve of expressed traits, but a heavy set of data to the left of the curve that indicates the direction of selection of the extreme phenotype.Disruptive selection is where two extreme phenotypes are maintained in a population. This curve looks like a two humped camel in it's expression of these extreme traits.
stabilizing selection
Stabilizing selection, which acts against both extreme phenotypes and favors intermediate variants. Hence the narrowing of the bell curve in the middle.
radius
The mean.