The development of similar adaptations by distantly related organisms living in similar habitats is termed
1.convergent evolution.
2.homologous evolution.
3.vicariance.
4.directional selection.
5.stabilizing selection.
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Differences between the amino acid sequence of human cytochrome c and that of 5 other species are given in the choices below. Based on these data, humans are most closely related to
A) bullfrogs: 20 amino acid differences. B) pigeons: 12 amino acid differences. C) fruit flies: 24 amino acid differences. D) yeast: 42 amino acid differences.
In nondisjunction one or more pairs of chromosomes ____
a. are deleted b. are duplicated c. undergo translocation
d. undergo random mutations e. fail to separate
What is the composition of the genetic material?
What will be an ideal response?
Speculate on why asexually producing species' nuclear and mitochondrial phylogenies tend to be more congruent than nuclear and mitochondrial phylogenies in sexually re-producing species?
a. Asexual populations consist of only females. b. Asexual populations do not experience population bottlenecks as often as sexual ones. c. The effective population size of mitochondrial DNA in sexual populations is higher than that of nuclear genes. d. Males and females in sexual populations always have different dispersal patterns.