6223662215 | Population | A group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding. | ![]() | 0 |
6223662216 | Gene Pool | Consists of all genes, including all the different alleles, that are present in a population. | ![]() | 1 |
6223662217 | Allele Frequency | the number of times an allele occurs in a gene pool, compared to the total number of alleles in that pool for the same gene | ![]() | 2 |
6223662218 | Natural Selection | Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest | 3 | |
6223662219 | Adaptation | A characteristic that improves an individual's ability to survive and reproduce in a particular environment. | 4 | |
6223662220 | Acquired Traits | characteristics that develop as an organism interacts with its environment; result from learning - not genetics | 5 | |
6223662221 | Genetic Traits | characteristics or traits acquired from our parents | 6 | |
6223662222 | Directional Selection | Form of natural selection in which the entire curve moves; occurs when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the other end of the curve | ![]() | 7 |
6223662223 | Adaptive Radiation | Period of evolutionary change in which groups of organisms form many new species whose adaptations allow them to fill different ecological roles in their communities. | ![]() | 8 |
6223662224 | Stabilizing Selection | Natural selection that favors intermediate variants by acting against extreme phenotypes | ![]() | 9 |
6223662225 | Artificial Selection | Selection by humans for breeding of useful traits from the natural variation among different organisms | 10 | |
6223662226 | Gene Flow | Gene flow introduces new genes into a population and also acts to make populations more similar genetically to one another | ![]() | 11 |
6223662227 | Genetic Drift | A change in the gene pool of a population due to chance. | ![]() | 12 |
6223662228 | Bottleneck Effect | Genetic drift that occurs when the size of a population is reduced, as by a natural disaster or human actions. Typically, the surviving population is no longer genetically representative of the original population. | 13 | |
6223662229 | 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. | 14 | |
6223662230 | Convergent Evolution | Process by which unrelated organisms independently evolve similarities when adapting to similar environments | 15 | |
6223662231 | Divergent Evolution | when two or more species sharing a common ancestor become more different over time | 16 | |
6223662232 | Coevolution | Process by which two species evolve in response to changes in each other over time | 17 | |
6223662233 | Mutation | A random change in DNA | 18 | |
6223662234 | Hardy-Weinberg Equilibrium | How often an allele appears, used to measure genetic variation in a population. Five conditions must be met. | 19 | |
6223662235 | p | Represents the the dominant allele | 20 | |
6223662236 | q | Represents the recessive allele | 21 | |
6223662237 | 2pq | Represents the heterozygous genotype | 22 |
Microevolution Flashcards
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