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B- Unit 5 Lesson 14

Organizing Data About Expressed Traits

TermDefinition
distribution how the variation in traits is spread across a population
frequency the number of times a particular trait is seen in a population
gene flow when genes move from one population to another
genetic drift a change in the frequency of an allele in a population from generation to generation
inheritable genetic variation changes in genetic material that can be passed to offspring
natural selection the process in which organisms better adapted to their environment tend to survive and produce more offspring
founder effect occurs when a small group of individuals establish a new population away from the original and can have a reduced diversity compared to the original
Codominance neither allele is either completely dominant or completely recessive so both traits appear simultaneously
Incomplete dominance a completely dominant allele is not present so a new version is expressed as a hybrid of the two
allele the different versions of traits that are available for a gene
genotype the combination of alleles found on the DNA
phenotype the characteristic that can be observed
polygenic traits traits that are influenced by the genetic material in more than one gene
Created by: atrang
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