UWF BSC1005 Chapter 12 & 17 Homework and Quiz
Reinforcement and Evolution
1. Reinforcement: ️Reinforcement is a type of natural selection.
Bird Populations
2. Separation of Bird Populations: ️The birds were separated by dispersal after colonizing an island.
Population Bottleneck
3. ...
1. Reinforcement: ✔️Reinforcement is a type of natural selection.
Bird Populations
2. Separation of Bird Populations: ✔️The birds were separated by dispersal after colonizing an island.
Population Bottleneck
3. Outcome of a Population Bottleneck: ✔️Increased population size could NOT be caused by a
population bottleneck.
Amoeba Population
4. Genetic Variation in Amoebas: ✔️It is more vulnerable to extinction due to lack of genetic variation.
5. Survival of Amoebas: ✔️False - In the example, all future generations were not just red amoebas due
to the reproductive rate.
Neanderthals and Modern Humans
6. Modern Humans and Neanderthal DNA: ✔️Except for modern ethnic groups in Africa, the majority of
humans have Neanderthal DNA traces.
7. Percentage of Neanderthal DNA: ✔️Research confirms that Neanderthal DNA makes up about 4% of
the modern human genome.
8. Source of Neanderthal DNA: ✔️DNA was isolated from Neanderthal bone fragments.
9. Mating Time Frame: ✔️Mating is believed to have taken place about 70,000 years ago in the Middle
East.
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