Discovery of DNA Quiz
Preview:
In Hershey Chase exp.,Protein tagging was done by-
A. Radioactive Phosphorus P37
B. Radioactive sulphur S 34
C. radioactive sulphur 35 S
D. radioactive Phosphorus 32 P
In Hershey-Chase exp.,DNA tagging was done by-
A. Radioactive phosphorus P 37
B. Radioactive sulphur S 34
C. Radioactive sulphur S 35
D. Radioactive Phosphorus 32 P
Transformation is
A. Formation of DNA from DNA
B. Formation of mRNA from DNA
C. Foreign DNA entry by Virus
D. Genetic alteration of a cell
Hershey-Chase exp. confirms that-
A. DNA is always formed from DNA in semiconservative manner.
B. Sulphur and Protein both enter in bacterial cell progeny.
C. DNA is genetic material, not protein.
D. Radioactive Phosphorus was only found in surrounding.
What feature did Hershey and Chase use to differentiate between the protein and nucleic acid in their experiment?
A. Proteins have phosphorus and nucleic acids have sulfur
B. Proteins have sulfur and nucleic acids have phosphorus
C. Proteins are single stranded and nucleic acids are double stranded
D. Proteins are double stranded and nucleic acids are single stranded
What is a virus that infects bacteria called?
A. bacteriophage
B. infectious virus
C. transformation
D. gene change
Who originally discovered that bacteria could be changed by the process of transformation although unable to determine what caused the transformation?
A. Griffith
B. Hershey & Chase
C. Avery
D. Franklin
Avery added an enzyme known to break down and destroy DNA to his heat killed S-strain bacteria, and saw that the R-strain bacteria were ____________________
A. still transformed, and killed the mice.
B. no longer transformed, and the mice lived
C. partially transformed, and the mice got sick but survived.
D. still transformed, but no longer killed the mice
Avery added an enzyme known to break down and destroy RNA to his heat killed S-strain bacteria, and saw that the R-strain bacteria were ____________________
A. still transformed, and killed the mice.
B. no longer transformed, and the mice lived
C. partially transformed, and the mice got sick but survived.
D. still transformed, but no longer killed the mice
In the early 1900s, most scientists thought it was _____________ that carried traits form parent to offspring.
A. Carbohydrates
B. Lipids
C. Proteins
D. DNA
Oswald Avery and his team built their experimental design off of the original tests performed by _________.
A. Frederick Griffith
B. Hershey and Chase
C. Watson and Crick
D. Erwin Chargaff
This scientist(s) found a “transforming factor” that changed harmless bacteria into harmful bacteria
A. Mendel
B. Avery
C. Chargraff
D. Griffith
Avery added an enzyme known to break down and destroy proteins to his heat killed S-strain bacteria, and saw that the R-strain bacteria were ____________________
A. still transformed, and killed the mice.
B. no longer transformed, and the mice lived
C. partially transformed, and the mice got sick but survived.
D. still transformed, but no longer killed the mice
Who discovered that the genetic material in a bacteriophage was DNA?
A. Hershey & Chase
B. Griffith
C. Avery
D. Watson & Crick
The scientist(s) who settled the debate about whether it was proteins or DNA that was the genetic material of the cell
A. Avery
B. Hershey & Chase
C. Watson & Crick
D. Griffith
