The process of speciation can occur gradually over thousands of years, or relati
ID: 191848 • Letter: T
Question
The process of speciation can occur gradually over thousands of years, or relatively rapidly. Which of the following scenarios has the potential for the most rapid process of speciation?
In a butterfly-pollinated flower population, a mutation occurs that increases bumblebee pollination and decreases butterfly pollination.
Abnormal meiosis in a plant creates 2n gametes, self-fertilization creates a robust 4n plant.
Two bird species adapted to adjacent habitats occasionally hybridize, and the hybrids choose to mate with one of the parent species.
Bird species A and B hybridize and produce offspring AxB that have a song that is intermediate between the two parental songs. The AxB F1 offspring back-cross to species A, and their F2 offspring (A x AxB) still sing the odd, intermediate song. The F2s mate preferentially with one another, not with species A or B.
A lizard population is split into two by a newly-formed river. Female lizards choose mates based on tail color. A mutation arises in one of the populations that influences the tail color.
In a butterfly-pollinated flower population, a mutation occurs that increases bumblebee pollination and decreases butterfly pollination.
Explanation / Answer
A lizard population is split into two by a newly-formed river. Female lizards choose mates based on tail color. A mutation arises in one of the populations that influences the tail color has the highest chance of going through speciation rapidly. Speciation is an evolutionary process in which one type of population evolves to give rise to distinct species.Scientists have come up with the concusion that geographic location is one of the highest causes of speciation.
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