Name: __________________________ Per ____ Date ____
Name: __________________________ Per ____ Date ____
DNA Replication Animations
Directions: Watch three animations and answer these
questions as you go along; pause, rewind as needed to
understand the process and answer the questions:
DNA Replication Animations
Directions: Watch three animations and answer these
questions as you go along; pause, rewind as needed to
understand the process and answer the questions:
[Google “mcgraw hill animation dna replication”]
 Animation 1: DNA Replication
o http://highered.mcgrawhill.com/sites/9834092339/student_view0/cha
pter14/dna_replication.html
 Animation 2: DNA Replication Fork
o http://highered.mcgrawhill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::
535::/sites/dl/free/0072437316/120076/micro0
4.swf::DNA%20Replication%20Fork
 Animation 3: “How nucleotides are added in DNA
replication”
o http://highered.mcgrawhill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::
535::/sites/dl/free/0072437316/120076/bio23.
swf::How%20Nucleotides%20are%20Added%20
in%20DNA%20Replication
Questions:
1. List the proteins/enzymes and their roles used in the
process of DNA Replication.
[Google “mcgraw hill animation dna replication”]
 Animation 1: DNA Replication
o http://highered.mcgrawhill.com/sites/9834092339/student_view0/cha
pter14/dna_replication.html
 Animation 2: DNA Replication Fork
o http://highered.mcgrawhill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::
535::/sites/dl/free/0072437316/120076/micro0
4.swf::DNA%20Replication%20Fork
 Animation 3: “How nucleotides are added in DNA
replication”
o http://highered.mcgrawhill.com/olcweb/cgi/pluginpop.cgi?it=swf::535::
535::/sites/dl/free/0072437316/120076/bio23.
swf::How%20Nucleotides%20are%20Added%20
in%20DNA%20Replication
Questions:
1. List the proteins/enzymes and their roles used in the
process of DNA Replication.
2. What is needed before DNA polymerase can begin its
job? Which strand on the Replication Fork is going to
have many fragments?
2. What is needed before DNA polymerase can begin its
job? Which strand on the Replication Fork is going to
have many fragments?
3. Which enzyme is the key player in Replication? What is
this enzyme’s limitation? How is this limitation
overcome?
3. Which enzyme is the key player in Replication? What is
this enzyme’s limitation? How is this limitation
overcome?
4. Why do the two strands of the helix have to be
elongated by two slightly different mechanisms?
4. Why do the two strands of the helix have to be
elongated by two slightly different mechanisms?
5. Explain elongation stage of replication – your answer
should include a discussion of leading strand, lagging
strand, Okazaki pieces, RNA primer, and DNA
Polymerase I and III. You may use the back of this sheet
to answer you question.
5. Explain elongation stage of replication – your answer
should include a discussion of leading strand, lagging
strand, Okazaki pieces, RNA primer, and DNA
Polymerase I and III. You may use the back of this sheet
to answer you question.
6. How are Okazaki fragments on the lagging strand joined
into one continuous strand?
6. How are Okazaki fragments on the lagging strand joined
into one continuous strand?
7. Draw a picture of the replication fork and label all the
components therein.
7. Draw a picture of the replication fork and label all the
components therein.