Indicate which of the following applies based on the key. KEY: Ae directional se
ID: 302724 • Letter: I
Question
Indicate which of the following applies based on the key. KEY: Ae directional selection, B stabilizing selection, C disruptive selection, D- bottleneck effect, E- genetic drift 1. An African butterfly exists in two strikingly different color patterns, each of which resembles other species that are distasteful to birds. 2. Brightly colored cocks (male chickens) mate more frequently than drab colored ones. 3. Most Swiss starlings produce 4 to 5 eggs in each clutch. 4. Fossil evidence indicates that horses have gradually increased in size over geologic time. 5. Pathogenic bacteria found in many hospitals are antibiotic resistant. 6. The average birth weight for human babies is about 7 pounds. 7. Fruit trees flower in mid-summer rather than early or late summer. 8. Hunting reduced northern elephant seal populations to 20 individuals in the 1890's. 9. Prevalence of deafness is higher in Amish communities than in the rest of the U.S. Cheetahs share about 99% of their genes, which leads to low survivorship, poor sperm quality, and greater susceptibility to diseases, all due to their numbers being severely reduced 10,000 years ago. 10.Explanation / Answer
part 1 directional selection because the individuals with extreme characters are selected.
4 bottleneck effect because of environmental catastrophe only a few individuals are left in the population which migrated to a new place and increase their population.
5 stabilization selection is a descriptive term in which extreme traits are selected
9 genetic drift is the variance in gene frequency in small populations, due to a random sampling of organisms