5.1 Flashcards
What was Griffith Researching?
Pneumonia
What scientist was researching pneumonia
Griffith
What happened to the mice that got the smooth/ Virulent strain?
They died
What happened to the mice that got the rough/ non-virulent strain?
They lived
What happened to the mice that got the heat killed smooth strain?
They lived
What happened to the mice that got the heat killed smooth strain + rough strain
They died
What strains did the mice that lived receive?
Rough/non-virulent strain and the heat killed smooth strain
What strains did the mice that died receive?
The heat killed smooth strain + rough strain and smooth/ virulent strain
What were the results of Griffiths experiment?
One of the strains acquired a transformation factor that made the bacteria deadly
What did the transformation factor do to the mice?
Killed them
What could’ve been the transformation factor in Griffiths experiment?
Protein or DNA
What was the purpose of the Aver/MacLeod/McCarty experiment?
To find Griffiths transformation factor
Did the transformation still occur when the proteins were destroyed?
Yes
Did the transformation still occur when the RNA was destroyed?
Yes
Did the transformation still occur when the DNA was destroyed?
No
The transformation only stopped when __ was destroyed.
DNA
Why didn’t scientists believe that DNA could be the source of hereditary?
Because it was far to simple to be the basis of such complex organisms
What is DNA?
Deoxyribonucleic Acid–> Genetic Information
What is the structure of DNA?
A double helix with two strands that are antiparallel
What is DNA made up of?
Sugar(deoxyribose)
Phosphate
Nitrogenous base
(A,T,C,G)
What type of bond is between the two strands connecting the nitrogenous bases?
Hydrogen Bonds
