Which of the following statements correctly describes a change that must occur for a new species to arise?
A) The number of chromosomes in the gene pool must change.
B) Changes to centromere location or chromosome size must occur.
C) Large numbers of genes that affect numerous phenotypic traits must change.
D) At least one gene, affecting one reproductive barrier, must change.

Question

Quizplus · Accepted Answer

For a new species to arise, changes that affect reproductive barriers are crucial. These barriers prevent different species from interbreeding. A change in even a single gene affecting a reproductive barrier can lead to speciation, as it may prevent successful reproduction with the original population, leading to the emergence of a new species.

Which of the Following Statements Correctly Describes a Change That