← Biology 122 Test
5 Written Questions
5 Matching Questions
- does natural selection change individuals
- what is a fixed and lost allele
- overtime do species develop more complex traits due to evolution
- explain Divergence in traits
- a your contribution to the gene pool for future generations the higher your ability to reproduce and survive the higher your fitness.
- b within a population a fixed allele is one that is adopted by every member and the lost allele is the allele that was in competition that none of the organisms have it is common in directional selection but not always evident
- c no just populations
- d once isolated all subpopulations are susceptible to evolutionary change. Subpopulations and if the populations are small then they are more susceptible to genetic drift.
- e no because complex traits are routinely lost and simplified over time as well as more complex ones created.
5 Multiple Choice Questions
- variant forms of a gene
- contrast to the typological thinking, it considered the variance of individuals in a population and its effects on the developments of a species.
- large cliff swallows survived because they had more fat stores in a cold snap so the large allele became dominant for survival. might not be fixed though
5 True/False Questions
the theory of evolution by natural selection was revolutionary because? → disruptive selection
historical constraints → adaptations are constrained because all traits must have evolved from previous traits
cells contain what four molicules → must be tested, must be falsifiable, cannot be proven only confirmed or disconfirmed, must be subject to revision or change.
internal consistancy → the observation that data from independent sources agree in supporting predictions made by a theory. such as fossils supporting a hypothesis
darwins two main points were → observations repeatedly confirmed and accepted as true