#Question id: 18843
#Unit 13. Methods in Biology
#Question id: 26520
#Unit 3. Fundamental Processes
#Question id: 2966
#Unit 2. Cellular Organization
Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that have 1 1/2 times more DNA than G1 phase cells. What is the most likely part of the cell cycle from which these cells were isolated?
#Question id: 9194
#Unit 9. Diversity of Life Forms
Zoonotic disease
#Question id: 4765
#Unit 8. Inheritance Biology
The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?