DNA structure and replication
Reading Guide (Chapter 7)
1. List four features of DNA that make it a unique molecule.
2. Draw a representation of the bacterial chromosome below.
3. In bacteria, DNA replication begins at a site on the chromosome known as the ________________.
4. DNA replication requires enzymes, list the key enzymes involved in the process and their function.
5. What is the enzyme that builds a complementary strand of DNA? Which direction does it build a new
strand?
6. When DNA replication occurs there is the synthesis of a leading and lagging strand. What do these
terms mean? Use the space below to draw replication of a strand of DNA and indicate which strand Is
the leading strand and which is the lagging strand.
7. List of terms:
replication fork
primer
DNA Polymerase
Leading strand
Lagging strand
Okazaki fragments
DNA Ligase
Antiparallel
Origin of replication