Which experiment definitively proved that DNA, and not protein, is the genetic material?
Griffith's experiment with Streptococcus pneumoniae
Avery, MacLeod, and McCarty's experiment with bacterial transformation
Hershey-Chase experiment using bacteriophages
Meselson-Stahl experiment demonstrating semi-conservative replication
Related Questions
From his transformation experiment Griffith concluded with transforming principle might be?
DNA
Polysaccharide Capsule
RNA
None
Which component of the bacteriophage was found inside the bacteria in the Hershey-Chase experiment, confirming DNA as the genetic material?
Radioactively labeled protein (35S)
Radioactively labeled DNA (32P)
Both radioactively labeled protein and DNA
Neither radioactively labeled protein nor DNA
If a segment of double-stranded DNA has 20% adenine, what percentage of guanine would it contain?
20%
30%
40%
50%
The Hershey-Chase experiment utilized radioactive isotopes to label different components of bacteriophages. Which of the following combinations accurately reflects the isotopes used and the components they labeled?
32P for protein and 35S for DNA
35S for both DNA and protein
32P for DNA and 35S for protein
32P for both DNA and protein
In Hershey and Chase's experiment, what was the key observation that supported DNA as the genetic material?
Radioactive sulfur () was found inside the bacteria.
Radioactive phosphorus () remained outside the bacteria.
Both radioactive sulfur () and phosphorus () were found inside the bacteria.
Radioactive phosphorus () was found inside the bacteria.
What radioactive element was used to label the protein part of the bacteriophage in the Hershey-Chase experiment?
Sulfur (35S)
Phosphorus (32P)
Nitrogen (15N)
Carbon (14C)
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
Radioactive Phages were allowed to attach to?
Bacteriophage
E. Coli
Salmonella
HIV Virus
The final proof of DNA as the genetic material came from the experiment of
Hargobind Khorana
Griffith
Hershey and Chase
Avey, Mcleod and McCarty
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
