In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species on the Atlantic side. Species live at different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the isthmus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly (in less than 1,000 years) , which of the following predictions is most likely?
A) similar percentages of difference in DNA sequences between all pairs of sister species
B) greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabit shallow water
C) greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
D) greater percentage of difference in DNA sequences between Atlantic species than between Pacific species
Correct Answer:
Verified
Q21: Which of the following organisms would be
Q22: In the western United States, pronghorn antelopes
Q23: On the Bahamian island of Andros, mosquitofish
Q24: Which of the following factors is most
Q25: Which of the following possible causes of
Q27: Which of the following methods is most
Q28: Two species of tree frogs that live
Q29: Which of the following statements best describes
Q30: In the oceans on either side of
Q31: The diagram represents the splitting of one
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents