In the Meselson and Stahl experiment, E. coli cells were grown in heavy (15N) nitrogen, and then switched to light nitrogen. After two generations, there was 50% light and 50% half heavy DNA. What would the results have been if the conservative model had been correct?
Below, put the expected percentages of each type of DNA after two generations according to the conservative model:
Half heavy ______%
Light ______% (5 points)
Briefly describe how a retroelement moves to a new location?