Vocab
What are the four bases?
- Adenosine, Thymine, Guanine, Cytosine
Hershey-Chase experiment
What did this experiment show about the role of DNA?
- DNA is the genetic material
Who proved that protein was not the heredity molecule?
Alfred Hershey and Martha Chase
What is a transforming principal?
DNA
true or false: protein is hereditary material
false
What makes up a nucleotide?
Griffith experiment
What was the names of the bacteria strains used?
R-strain and S-strain
How did Alfred Hershey and Martha Chase contribute to the road of the Double Helix?
Determined that part of a virus that infects and replicates is its nucleic acid and not its protein
What was the name of the scientist that conducted a genetic experiment on mice?
frederick Griffith
What is the difference between the sugars of RNA and DNA
RNA has ribose, DNA has deoxyribose
What is DNA?
- Deoxyribose nucleic acid
-The molecule that controls heredity
- Contains genetic coding
Hershey-Chase experiment
Which radioactive element was added to the bacteriophage's protein coat?
The bacteriophage's DNA?
- Sulfur in protein coat
- Phosphorus in DNA
How did James Watson contribute to the road of the double helix?
He had his genome sequenced
What two bacteria's did Frederick Griffith use in his experiment?
Type R bacteria that is rough in texture and type s bacteria that is smooth in texture because it is enclosed in a polysaccharide capsule.
what are the two jobs of genetic material
duplicate itself, and control the development of the cell
What is double helix structure?
- Two strands coil around each other
Hershey-Chase experiment
What bacteria did the bacteriophages infect?
- E. coli bacteria
what did phoebus levene identify
5 carbon sugar ribose (as part of some nucleic acids)
What are the two materials needed for genetic information?
DNA replication and control the development of the cell
True or false: DNA wraps at several levels until it is compacted into a chromatid
true
What does the DNA coil around?
- Histones
What was Levene's first name?
- Phoebus
who discovered the three parts of a nucleic acid
phoebus leveene
What was the substance the scientist thought was the transforming principle (that was proving wrong)?
Protein
altogether, what is the chromosome substance called?
Chromatin