One explanation for the “stepped cline” in both gene frequencies and morphology is that B. bombina and B. variegata first diverged in allopatry and are now forming a secondary hybrid zone. Is the spatial pattern of genetic and morphological variation consistent with this explanation? Why or why not? 4b) Another explanation is that this is a “primary hybrid zone” where disruptive selection is acting on parapatric populations of red-bellied and yellow-bellied toads. What would have to be true for the ecological niches of these two-color forms of toad for disruptive selection to be acting on so many loci in parapatry? 4c) In either a secondary or a primary hybrid zone, what do the graphs above indicate about the relative fitnesses of the hybrid toads away from the 0-kilometer site on the cline? Why?

One explanation for the “stepped cline” in both gene frequencies and morphology is that B. bombina and B. variegata first diverged in allopatry and are now forming a secondary hybrid zone. Is the spatial pattern of genetic and morphological variation consistent with this explanation? Why or why not? 4b) Another explanation is that this is a “primary hybrid zone” where disruptive selection is acting on parapatric populations of red-bellied and yellow-bellied toads. What would have to be true for the ecological niches of these two-color forms of toad for disruptive selection to be acting on so many loci in parapatry? 4c) In either a secondary or a primary hybrid zone, what do the graphs above indicate about the relative fitnesses of the hybrid toads away from the 0-kilometer site on the cline? Why?

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter10: Reconstitution Of Powdered Drugs

Section: Chapter Questions

Problem 33SST

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