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Short Answer Quiz
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1

Define biological evolution.
2

Give two of the three broad categories of traits that can affect formation of new species.
3

What are the two fundamental principles underlying Darwin's proposed mechanisms of evolution?
4

Describe how a beneficial allele may lead to increased fitness for particular genotypes.
5

Describe two prezygotic mechanisms for reproductive isolation.
6

What can you say about mate selection in species where sexual selection operates primarily to influence traits that exist solely for the reproductive success of the male?
7

Differentiate between anagenesis and cladogenesis.
8

What is an adaptive peak?
9

How can formation of a tetraploid lead to sympatric speciation?
10

What evidence supports the idea of punctuated equilibrium?
11

List advantages to the use of genes instead of (or in addition to) morphological characteristics to study evolutionary processes.
12

You design an experiment to compare two species of tree frog. You perform a cytogenetic analysis and discover that the chromosome numbers and arrangement are identical in these two species. How might you explain this situation?
13

Provide an example of paralogous genes.
14

What is a molecular clock?
15

State two mechanisms that facilitate horizontal gene transfer.
16

What is the major difference between Darwinian theory and the neutral theory of evolution?
17

Give the five principles suggested by the neutral theory of evolution.





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