#Question id: 12518
#Unit 6. System Physiology – Plant
#Question id: 5804
#Unit 8. Inheritance Biology
The gene that is mutated in cases of cystic fibrosis encodes an ion transporter protein normally expressed in the respiratory and digestive tracts along with other locations. Individuals homozygous for the most common mutation in this gene (ΔF508) died at very early ages prior to the advent of advanced medical intervention. Despite this, the mutation exists at relatively high frequency in populations of European descent. One potential explanation is that heterozygotes for such mutations may be relatively immune to the lethal effects of diseases such as typhoid fever. Which statement below is most accurate?
#Question id: 18727
#Unit 13. Methods in Biology
#Question id: 11714
#Unit 10. Ecological Principles
In recognizing patchiness in the natural world, ecologists have developed three different models of populations. Which of these recognize(s) that there are differences in the quality of habitat patches without considering effects of differences in habitat quality within the habitat matrix?
#Question id: 4649
#Unit 11. Evolution and Behavior
Which statement best describes the evolution of pesticide resistance in a population of insects?