DNA History Flashcards
List the scnitists in terms of timeline
Mendel
Meisher
Levene
Chargaff
Griffith
Avery, Macleod, Mccarty
Hershey and Chase
What did Meisher do
Isolated a substance from WBC called it nucleic acid
What did Levene do
Studied Nucliec acid and found two types.
DNA: deoxyribose
RNA:ribose
Each nucleotide is composed of?
-Pentose sugar
-Phosphate
-N base
What did Chargaff do
Refuted Levens conclusion that sequence of bases are always the same.
Found that in any sample of DNA amount fo A=T and G=C aka chargaffs rule
What did Grifiths do
Experiment with pneumococcus on mice
What did Oswald, macleod and mccarty do
carried grifiths experinment and found. that DNA was the transformind principale.
but still not accepted becuase bacteria prokaryotes
What did Oswald, macleod and mccarty do
carried grifiths experinment and found. that DNA was the transformind principale.
but still not accepted becuase bacteria prokaryotes
What did Oswald, macleod and mccarty do
carried grifiths experinment and found. that DNA was the transformind principale.
but still not accepted becuase bacteria prokaryotes
