Experiments
Identifying the Genetic Material
General
DNA
100

The element that is found in protein but not in DNA

Sulfur

100

Griffith, the bacteriologist, did his experiment on this bacteria.

Streptococcus pneumonia.

100

The chromosomes are found inside the ---

nucleus

100

S strain + live mice =

dead mice

200

The element that is found in DNA and not in the protein

phosphorus

200

This scientist discovered transformation.

Fredrick Griffith.

200

The chromosome is made up of --------- & ---------

DNA & protein

200

R strain + live mice =

live mice

300
This is a virus that infects bacteria.
What is bacteriophage.
300

This researcher, along with co-workers, discovered that DNA is responsible for transformation.

Avery.

300

The structure of the bacteriophage is made up of ------------- & --------------

DNA & protein

300

Heated S strain + live mice =

Live mice

400

A substance that has the ability to cause disease is said to be this.

virulent.

400

This change that is caused when foreign genetic material is taken up by a cell.

Transformation.

400

R strain + Heated S strain + live mice =

Dead mice

400

What are the other molecules that Avery & his colleagues examined?

DNA

protein

lipids

RNA

500

The bacterial strain that causes pneumonia disease.

Smooth strain

500

These two scientists discovered that DNA is the hereditary material by examining radioactive E. coli and bacteriophages .

Hershey and Chase.

500

What are the two factors that led Hershey & Chase to choose the bacteriophage for their experiments

1. It is made of DNA & protein

2. It cannot replicate itself

500

Why did Hershey & Chase use radioactive labeling technique?

to trace the genetic material

M
e
n
u