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WorksheetsPhylogeny
Total questions: 7
Worksheet time: 4mins
If you were building a phylogenetic tree of cats, which of the following would be the best outgroup?
wolf
domestic cat
frog
leopard
In a comparison of birds and mammals, the condition of having four limbs is
a shared ancestral character
a shared derived character
a character useful for distinguishing birds from mammals
an example of analogy rather than homology
The yellow, blue, and read bubbles represent different phylogenies. How would you describe the yellow bubble?
monophyletic
paraphyletic
polyphyletic
anaphyletic
Both butterflies and bats have the ability to fly due to wing development. How would you describe the evolutionary relationship of the animal's wings?
polytomy
homoplasies
analogous
vestigial
On a phylogenetic tree, what do the branch lengths represent?
The age of the organisms
amount of genetic change since divergence
amount of genetic change since convergence
The age of divergence
Which protein has the fastest molecular clock?
fibrinopeptides
hemoglobin
cytochrome C
divergence
What is horizontal gene transfer? (select all that apply)
the process of chromosome creation by recombination
increase of genetic variation by meiosis
injection of DNA/RNA from virus to host
exchange of transposible elements from one genome to another
