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
Related Questions
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 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
If a segment of double-stranded DNA has 20% adenine, what percentage of guanine would it contain?
20%
30%
40%
50%
Avery, MacLeod, and McCarty purified the 'transforming principle' identified by Griffith. Which treatment specifically abolished the transforming activity, proving its chemical nature?
Protease
Ribonuclease
Deoxyribonuclease
Lipase
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
Which observation from Griffith's experiment with Streptococcus pneumoniae provided the strongest evidence for the existence of a 'transforming principle'?
Live non-virulent bacteria did not cause disease in mice.
Heat-killed virulent bacteria did not cause disease in mice.
Live virulent bacteria caused disease in mice.
Heat-killed virulent bacteria, when mixed with live non-virulent bacteria, caused the latter to become virulent.
