DC BIO: Driving Question 3

Which step comes after the replication fork is formed? 1. DNA polymerase adds complementary nucleotides to the new strand; A with T and G with C 2. DNA polymerase attaches to the primer 3. Okazaki fragments are bound together by ligase

2

What stabilizes the DNA molecule during replication?

Single Strand Binding Proteins

What unwinds DNA?

helicase

What strand is copied discontinuously because it is traveling away from the helicase?

lagging strand

What strand is copied continuously?

leading strand

What binds the okazaki fragments?

ligase

Which step comes second? 1. Replication fork is formed 2. DNA polymerase attaches to the primer 3. The helix is unwound and unzipped by the enzyme helicase

1

Which step comes first? 1. Replication fork is formed 2. DNA polymerase attaches to the primer 3. The helix is unwound and unzipped by the enzyme helicase

3

What builds a new strand by adding complementary bases?

Polymerase

What is a laboratory technique that can amplify small segments of DNA?

Polymerase Chain Reaction (PCR)

What creates a short RNA segment at the replication fork?

Primase