evidence

Cards (8)

what were the three theories
conservative
semi-conservative
dispersive
how was the experiment set up
e.coli divides every 20 minutes
put N-14 in agar for set time then introduce N-15
centrifuge after 20 minutes (one division)
what did semi conservative replication predict would happen
one line on the centrifuge
what did conservative predict would happen
two lines
one n-15 one n-14
what did dispersive predict would happen
one line
how did they tell with it was dispersive or semi-conservative
do a second centrifuge
what did dispersive predict would happensecond time
one line
it is now split 75% heavy and 25% light but still equally distributed
what did semi predict would happen second time
two lines
leading strand could be old or new