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Gizmo Student Exploration Building DNA 2023
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Gizmo Student Exploration Building DNA 2023 Gizmo Student Exploration Building DNA 2023 Gizmo Student Exploration Building DNA 2023
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Name: ______________________________________ Date: ________________________Student Exploration: Building DNA
Vocabulary: double helix, DNA, DNA helicase, DNA polymerase, enzyme, mutation,
nitrogenous base, nucleotide, replication
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
DNA is an incredible molecule that forms the basis of life on Earth. DNA molecules contain
instructions for building every living organism on Earth, from the tiniest bacterium to a massive
blue whale. DNA also can make copies of itself. This allows living things to grow and reproduce.
1. What is the current model of DNA termed?
2. What do you think is meant by the concept of semi-conservative DNA
replication?
Gizmo Warm-up
The Building DNA Gizmo allows you to construct a DNA
molecule and go through the process of DNA replication.
1. Look on the right side of the Gizmo. What is the name
for the basic building block of DNA and what are its
components?
2. How many different nitrogenous bases do you see? What do the letters stand
for? __________________________________________________________________
This study source was downloaded by 100000880700921 from CourseHero.com on 03-20-2024 10:34:59 GMT -05:00
2018
https://www.coursehero.com/file/221687067/DNA-Gizmo-2023docx/
, Activity A: Get the Gizmo ready:
Build a DNA If necessary, click Reset to start the building
molecule process.
Question: What is the structure of DNA?
Left side Right side
1. Build: Follow the steps given in the Gizmo to
construct a molecule of DNA. (Note: For simplicity,
this DNA molecule is shown in two dimensions,
without the twist.)
Stop when the hint reads: “The DNA molecule is
complete.” In the spaces at right, list the sequence
of nitrogenous bases on the left-hand side of the
DNA molecule and the right-hand side.
2. Take a picture: Click the camera ( ) to take a
snapshot of your DNA molecule. Right-click the
image and select Copy Image. Paste the image
into a blank document, and label this image
“Original DNA molecule.”
3. Explain: Describe the structure of the DNA molecule you made.
A. What makes up the sides of the DNA molecule?
B. What makes up the “rungs” of the DNA molecule?
4. Fill in: Write the name of the nitrogenous base that joins to each of the bases below:
Adenine (A) joins to Thymine (T) joins to
Cytosine (C) joins to Guanine (G) joins to
What is the formal term used to identify this pattern and who is this pattern named after?
______________________________________________________________________
5. Practice: The left side of a DNA molecule is shown. Draw a
complementary right side of the molecule.
This study source was downloaded by 100000880700921 from CourseHero.com on 03-20-2024 10:34:59 GMT -05:00
2018
https://www.coursehero.com/file/221687067/DNA-Gizmo-2023docx/
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