The mutation accumulation hypothesis proposes that for late-life traits, selection cannot purge deleterious mutations. What assumptions does this hypothesis make

Environmental differences within ecosystems are generally caused by

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities