BIOLOGY 152 Lecture Notes - Common Descent, Biogeography, Natural Selection
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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 |
Classify each example into the correct evolutionary evidencecatogory
Can you check my answers
Biogeography | Anatomy | Molecular comparisons | Development |
Distribution of fossils on five continent | Homologous structures of vertebrate forelimbs | Similarties in DNA sequences | Similarities in the embryo stage of specied |
Distinct species on either side of Wallace's line | Vestigial structures | Amino Acid sequence differences between two spe |