Answered: 2. When new species formed because gene…

2. When new species formed because gene flow was blocked by a physical barrier, this is considered... Group of answer choices a.allopatric speciation b.polyploidy c.sympatric speciation

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter18: Evolution And The Origin Of Species

Section: Chapter Questions

Problem 8RQ: Which situation would most likely lead to allopatric speciation? Flood causes the formation of a new...

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Concept explainers

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.

Question

2. When new species formed because gene flow was blocked by a physical barrier, this is considered...

Group of answer choices

a.allopatric speciation

b.polyploidy

c.sympatric speciation

Definition Definition Process by which new species arise. This occurs when populations of a species become isolated and diverge, developing unique traits through natural selection, genetic drift, or other mechanisms. Over time, these differences accumulate until the populations can no longer interbreed and are considered separate species.

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