Question:
Artificial selection to obtain cows yielding higher milk output represents :
Artificial selection to obtain cows yielding higher milk output represents :
Updated On: May 5, 2024
- Directional as it pushes the mean of the character in one direction
- Disruptive as it splits the population into two, one yielding higher output and the other lower output
- Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows
- Stabilizing selection as it stabilizes this character in the population
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The Correct Option is A
Solution and Explanation
Artificial selection to obtain cow yielding higher milk output will shift the peak to one direction, hence, will be an example of Directional selection. In stabilizing selection, the organisms with the mean value of the trait are selected. In disruptive selection, both extremes get selected.
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.