Exam 2 Lecture 18 Flashcards
1
Q
What famous experiment used the T4 virus?
A
Hershey Chase used it to show DNA is the genetic coding material
Demonstrated that DNA enters bacteria while the protein stayed outside the host cell
2
Q
What does T4 make early in the replicative cycle?
A
Proteins needed for viral DNA synthesis
Nucleases that attack host DNA to inhibit host functions
T4 DNA is protected from nucleases because they have a modified cytosine that protects them
3
Q
T4 late cycle replication?
A
Makes capsid components, dsDNA packaged into head then tail added
4
Q
How long does the T4 cycle take and how many progeny?
A
30-40 mins
lyses host and releases 100-200 progeny
5
Q
A
