Day 50, pp. 287 -- 293

 DNA (7)

Griffith (2)

Hershey and Chase (5)

bacteriophage (3)

DNA replication (10)

DNA replication (3)

Quiz, pp. 287 -- 293

1.  When Griffith and Avery mixed dead bacteria with live bacteria of a related strain the live bacteria brought in something that then expressed itself.  Did it bring in proteins or nucleic acids?

2.  What is a bacteriophage?  Sketch one.

3.  Look at figures 16.1 and 16.2, understanding them.

4.  What shape does DNA take in cells?

5.  What are the four nucleic acid bases and how do they pair?

6.  Sketch DNA replication, using figure 16.7.