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WorksheetsUnit 2 Recap
Total questions: 7
Worksheet time: 9mins
Cytochrome c is a protein made up of 104 amino acids. It is found in the mitochondria and aides in the electron transport chain during cellular respiration. The data table represents the number of amino acid differences in cytochrome c between organisms A, B, C, and D.
The phylogenetic trees represent possible interpretations of the data in the chart.
Which two phylogenetic trees represent the data most accurately? (choose 2)
The American toad (Anaxyrus americanus) and Fowler's toad (Bufo fowleri) live in the same area. However, The American toad mates in early summer while Fowler’s mates in late summer.
Geographic isolation
Behavioral isolation
Temporal isolation
Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Females are now mating only with the tail they prefer. What type of reproductive barrier is this?
behavioral isolation
hybrid sterility
temporal isolation
mechanical isolation
Which form of evolution can occur quickly?
gradualism
punctuated equilibrium
allopatric speciation
sympatric speciation
64% of the population has the recessive phenotype. What is the percentage for Rr?
.04
.32
.64
.2
.8
the selection pressure favors the extreme phenotypes, dividing the population into 2 distinct groups
directional selection
stabilizing selection
geographic selection
disruptive selection
A biological ____________ is a group of interbreeding populations that is reproductively isolated from other groups.
species
family
phylogeny
hybrid
