DNA Replication
Interactive Video
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Easy
Standards-aligned
Jessica Richards
Used 7+ times
FREE Resource
17 questions
Show all answers
1.
SLIDE QUESTION
30 sec • Ungraded
2.
SLIDE QUESTION
30 sec • Ungraded
3.
DRAW QUESTION
3 mins • 1 pt
Draw a DNA molecule that contains 4 nucleotides.
Include the sugars, the phosphates, and one of each nitrogenous base.
4.
OPEN ENDED QUESTION
1 min • 1 pt
What do you already know about DNA replication?
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5.
REORDER QUESTION
1 min • 1 pt
Put the steps of DNA replication in order.
Okazaki fragments on the lagging strand are joined together by ligase.
Helicase "unzips" the helix by breaking hydrogen bonds.
Polymerase adds free nucleotides to the template strands in the 5' to 3' direction.
SSB proteins keep the DNA from winding back up.
There are two identical copies of DNA. They are semiconservative. (half old / half new)
6.
MATCH QUESTION
1 min • 1 pt
Match the following names of the enzymes involved in DNA replication to their jobs.
helicase
adds free nucleotides to the template strand
polymerase
joins Okazaki fragments
ligase
breaks hydrogen bonds between bases
7.
DRAW QUESTION
3 mins • 1 pt
OST TEST QUESTION
Use the options on the left side of the screen to draw DNA in the boxes in a way that represents the semiconservative nature of DNA replication through two cycles of copying.
You may use the options more than once or not at all.
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