Consider the following examples, and decide if each of them would result in directional, disruptive, balancing, or stabilizing selection? Sturdy stems
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Consider the following examples, and decide if each of them would result in directional, disruptive, balancing, or stabilizing selection?
Sturdy stems and leaves among plants exposed to windy climates
Thick fur among mammals exposed to cold climates
Polymorphisms in snail color and banding pattern
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