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Biology 152 Exam #1- Questions with Answers
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- Biology 152 Exam #1- Questions With Answers
Biology 152 Exam #1- Questions with Answers
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Biology 152 Exam #1- Questionswith Answers
Adaptation - -Inherited characteristic of an organism that enhances its
survival and reproduction in specific environments
- Natural selection - -A process in which organisms with certain inherited
characteristics are more likely to survive and reproduce than are organisms
with other characteristics.
- Artificial selection - -The selective breeding of domesticated plants and
animals to encourage the occurrence of desirable traits
- Observations of change, fossil record, homology, biogeography - -4
Supporting Lines of evidence for Evolution
- Analogy - -The similarity of two species due to convergent evolution.
These species have similar characteristics because they live in similar
environments
- Homology - -Similarity in shared characteristics because of shared
common ancestry
- Population - -What is the smallest biological unit evolution can affect?
- Mutation - -What is the ultimate source for new alleles?
- Allele - -Any alternative forms of a gene that produce distinguishable
phenotypic effects
- Gene pool - -The aggregate of all alleles from one population to another,
resulting from the movement of fertile individuals or their gametes
- No natural selection, no mutation, no genetic drift, no gene flow, random
mating - -What are the conditions of Hardy Weinberg's equation?
- Founder effect - -Genetic drift that occurs when a few individuals become
isolated from a larger population and form a new population whose gene
pool composition is not reflective of that of the original population
- Bottleneck effect - -Genetic drift that occurs when the size of a population
is reduced by natural disaster or human actions. Typically, the surviving
population is no longer genetically representative of the original population.
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