A type of bird on an island makes nests in both tree roots and in tree branches at various heights from the ground. A ground snake invades the island and eats eggs or chicks from nests in tree roots and low tree branches. Part A: What type of selection is operating on the height at which the bird places its nest? A. Stabilizing B. Balancing C. Directional D. Disruptive What's the rationale? What effect will this selection have on the trait phenotype (height of nest)? Answer based on chart linked
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.
A type of bird on an island makes nests in both tree roots and in tree branches at various heights from the ground. A ground snake invades the island and eats eggs or chicks from nests in tree roots and low tree branches.
What type of selection is operating on the height at which the bird places its nest?
A. Stabilizing
B. Balancing
C. Directional
D. Disruptive
What's the rationale?
What effect will this selection have on the trait
Answer based on chart linked
Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are more likely to survive and pass on the genes that helped them thrive. Species change and diverge as a result of this process.
There are three types of natural selection that can occur in nature, and those three types are as follows:
Directional selection
Disruptive selection
Stabilizing selection
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