Vocab
Mystery
Nitrogen
Results/Relevance
100

Define semi-conservative DNA

Each daughter DNA has an original strand and a new one

100

What is Ms. Farmer's favorite color

(Insert Color)

100

Which two isotopes of Nitrogen were used within this experiment?

N-15 and N-14
100

Which hypothesis did this study confirm?

Watson and Crick's Hypothesis

200

Define Centrifugation

Technique using centrifugal force to separate components of a mixture based on density

200

Why was E-coli chosen for this study?

Rapid replication as well as the DNA's ability to be isolated and manipulated

200

What is the difference between the conservative, semi-conservative, and dispersive models?

Conservative: One molecule with both original strands, one with two new strands

Dispersive: Fragments of old and new DNA dispersed in both molecules

200

The study confirmed which role the DNA strands play in regards to creation of new strands

DNA strands act as templates for new strands

300

Define buoyant density and its function in the study

The density of an object measured in a buoyant medium and was used to seperate DNA molecule

300

Which replication models did the study disprove?

Ruled out conservative and dispersive models of replication

300

Why did Meselson and Stahl grow the DNA in two different isotopes of Nitrogen?

To show the presence of both an original and new strand, as the nitrogen was used to synthesize the DNA.

300

This study laid the foundation for... (Name 2)

Molecular genetics, DNA Repair, and Genetic Engineering