Which scientist's experiment definitively proved that DNA is the genetic material?
Hershey and Chase
Avery, MacLeod, and McCarty
Griffith
Meselson and Stahl
Related Questions
Hershey and Chase utilized bacteriophages to demonstrate that DNA is the genetic material. What is a bacteriophage?
A type of bacteria
A bacterial enzyme
A virus that infects bacteria
A component of bacterial DNA
Which characteristic of DNA makes it a more stable carrier of genetic information compared to RNA?
The presence of uracil instead of thymine
Its single-stranded structure
The presence of deoxyribose sugar instead of ribose sugar
Its susceptibility to alkaline hydrolysis
If Hershey and Chase had found radioactive sulfur () inside the bacteria instead of radioactive phosphorus (), what would have been the conclusion of their experiment?
DNA is the genetic material.
Protein is the genetic material.
Both DNA and protein are the genetic material.
Neither DNA nor protein is the genetic material.
Radioactive Phages were allowed to attach to?
Bacteriophage
E. Coli
Salmonella
HIV Virus
If a segment of double-stranded DNA has 20% adenine, what percentage of guanine would it contain?
20%
30%
40%
50%
What was the key observation in the Hershey-Chase experiment that supported DNA as the genetic material?
Radioactive sulfur (S) was found inside the bacterial cells.
Radioactive phosphorus (P) was found inside the bacterial cells.
Both radioactive sulfur and phosphorus were found inside the bacterial cells.
Neither radioactive sulfur nor phosphorus were found inside the bacterial cells.
Griffith conducted his transformation experiments on?
E. Coli
Tetracoccus
Diplococcus
Penicillin
If Hershey and Chase had found both 32P and 35S inside the bacteria, what would have been the conclusion of their experiment regarding the genetic material?
DNA is the genetic material
Protein is the genetic material
Both DNA and protein are the genetic material
The experiment would be inconclusive regarding which molecule is the genetic material
In the Hershey-Chase experiment, what crucial observation confirmed that DNA, and not protein, was the genetic material injected into bacteria by bacteriophages?
Radioactive sulfur (35S) was found inside the bacterial cells, while radioactive phosphorus (32P) remained outside.
Both radioactive phosphorus (32P) and sulfur (35S) were found inside the bacterial cells.
Neither radioactive phosphorus (32P) nor sulfur (35S) were found inside the bacterial cells.
Radioactive phosphorus (32P) was found inside the bacterial cells, while radioactive sulfur (35S) remained outside.
The definitive evidence establishing DNA as the genetic material was derived from the experiments of:
James Watson and Francis Crick
Frederick Griffith
Oswald Avery, Colin MacLeod, and Maclyn McCarty
Alfred Hershey and Martha Chase
