BIOB51H3 Lecture Notes - Lecture 6: Joseph Felsenstein, Sperm Competition, Scatter Plot
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1) Parents from two different species mate and produce a fertileoffspring with a polyploid chromosome number. This is called
allopolyploidy | |
allopatric speciation | |
triploidy | |
mutation selection | |
autopolyploidy |
2)A monophyletic group would be best described as:
a grouping of most, but not all, species descended from a commonancestor | |
a grouping of all species descended from a common ancestor,including that ancestor | |
a grouping of all species descended from a common ancestor,excluding that ancestor | |
a grouping of all species that share a similar set of traits,regardless of whether the traits are homologous or analogous |
3) Vicariance refers to:
a pattern of speciation whereby new species evolve reproductiveisolation in sympatry | |
a kind of speciation where a small group of colonists founds apopulation on an island habitat | |
a pattern of speciation in which a population is subdivided by ageographical barrier | |
a technique for constructing phylogenetic trees based onsynapomorphies |
Cladistic methods of phylogenetic inference are based on which of the following?
synapomorphies (shared derived characters) that are shared by taxa that descend from a common ancestor |
similarities in characters between taxa that suggest common ancestry |
clustering algorithms that group taxa based on their degree of similarity |
uniquely derived characters show the most recently evolved taxa |