Mechanisms Of Speciation
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Chapter 25. 2 Mechanisms of Specation for GenBioII.
- 1.Allopatric Speciation occurs through which process:
- A.
Polyploidy
- B.
Geographical separation
- C.
Gene flow
- D.
Sexual selection
- 2.The two forms of polyploidy are:
- A.
Chromosomal nondisjunction
- B.
Interspecies breeding
- C.
Adaptive radiation
- D.
Sympatric speciation
- 3.Animals are not tolerant of polyploidy.
- A.
True
- B.
False
- 4.When a tetraploid reproduces with a normal diploid:
- A.
The offspring will have three sets of chromosomes.
- B.
The offspring will be either diploid or tetraploid.
- C.
The offspring will be sterile.
- D.
Trick question. they can't reproduce because they are different species
- 5.Sympatric Speciation only occurs through abrupt changes.
- A.
True
- B.
False
- 6.An alloploid has at least _____ set of chromosomes from two or more different species.
- 7.Which of the following are examples of allopatric speciation?
- A.
Grass adapting to become more tolerant of metal in the soil.
- B.
Two populations of fish that were separated by the Panama landbridge.
- C.
Bees changing their breeding season in accordance with certain flowering seasons.
- D.
Birds being carried by a storm to a distant island.
- 8._______ zones are places where two populations are able to interact and interbreed
- 9.Which of the following is not an example of a gradual change?
- A.
Gene flow
- B.
Random mutations
- C.
Interspecies breeding
- D.
Natural selection
- E.
Change in chromosome number
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