DNA Station Activity
Station 1:
Complete the complementary strand for the
DNA sequence below.
A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G
______________________________
If there are 20% of a random strand of DNA is
composed of adenine bases, what percent of
the DNA is guanine?
______
Station 1:
Complete the complementary strand for the
DNA sequence below.
A-T-A-A-T-C-G-A-G-A-G-A-T-T-C-A-A-T-C-G
T-A-T-T-A-G-C-T-C-T-C-T-A-A-G-T-T-A-G-C
______________________________
If there are 20% of a random strand of DNA is
composed of adenine bases, what percent of
the DNA is guanine?
__30%____
Station 2:
In one sentence, answer the question
below.
Why does the DNA of a cell replicate
before the cell divides to make a two
new cells?
1
____________________
Station 2:
In one sentence, answer the question
below.
Why does the DNA of a cell replicate
before the cell divides to make a two
new cells?
A cell replicates its DNA before it divides so that
the two new cells EACH get a full set of DNA.
Station 3: Answer the question below in
1 sentence.
All living things have DNA, but not all
living things have the same DNA.
Knowing this, what does the DNA of all
living things have in common?
1
______________________
Station 3: Answer the question below in
1 sentence.
All living things have DNA, but not all
living things have the same DNA.
Knowing this, what does the DNA of all
living things have in common?
All living things have the A, T, C, G bases
Station 4:
Answer the question below in 2
sentences.
Why is the shape of DNA described as
a double helix?
(There are two reasons you should
describe. Think about the two words!)
1
______________________
Station 4:
Answer the question below in 2
sentences.
Why is the shape of DNA described as
a double helix?
(There are two reasons you should
describe. Think about the two words!)
It is “double” because there are two sides to the
DNA. It is a “helix” because of its spiral shape.
Station 5:
Fill in the blanks below.
The two strands of DNA are said to be
________________
(opposites/complementary).
1
2 (two_______
words) rule.
This is true because of the ____
Station 5:
Fill in the blanks below.
The two strands of DNA are said to be
________________
(opposites/complementary).
1
Base_______
pairing rule.
This is true because of the ____
Station 6:
Which of the following make up the
backbone of DNA?
Deoxyribose sugar
Nitrogen base
Phosphate group
______________
& _____________
1
2
Station 6:
Which of the following make up the
backbone of DNA?
Deoxyribose sugar
Nitrogen base
Phosphate group
______________
& _____________
1
2
Station 7:
Look at the diagram below and focus on the last
picture on the right. In one sentence, what does
it mean that DNA replication is semiconservative?
1
______________________________
Station 7:
Look at the diagram below and focus on the last
picture on the right. In one sentence, what does
it mean that DNA replication is semiconservative?
OLD NEW OLD NEW
DNA replication is semi-conservative because at the end of replication, one
______________________________
of the strands is from the original DNA and one is the newly made strand.
Station 8:
Fill in the blanks in the paragraph. Use the
following words:
antiparallel, double helix, complementary
DNA is in the shape of a ______ ______. The two
sides, or strands, of DNA are ___________ to one
another. The direction of the DNA strands are said to be
________________ because they run in opposite
directions, allowing the bases to bond in the middle
with the backbone on the outside.
Station 8:
Fill in the blanks in the paragraph. Use the
following words:
antiparallel, double helix, complementary
DNA is in the shape of a ______
double______.
helix The two
sides, or strands, of DNA are complementary
___________ to one
another. The direction of the DNA strands are said to be
antiparallel
________________
because they run in opposite
directions, allowing the bases to bond in the middle
with the backbone on the outside.
Station 9:
Draw the nucleotide below and then label the
three parts.
1
2
3
Station 9:
Draw the nucleotide below and then label the
three parts.
Nitrogen base
Phosphate 1
group
2
Deoxyribose
3 sugar
Station 10:
Station 10:
Book
Chapter
sentence
Words
Letters
Station 11:
Patterns in DNA
A Model of a segment of DNA is
shown to the right
What patterns do you observe in
the molecules?
Station 11:
Patterns in DNA
A Model of a segment of DNA is shown to
the right
What patterns do you observe in the
molecules?
Station 12: Match each image with correct terms below 1-5
A
B
C
1.
2.
3.
4.
5.
E
DNA Double helix
Gene
Hydrogen bonding
Chromosome
Nucleotide
D
Station 13: Reading Charts
Station 14
Station 15: Use the diagram to answer the
following questions
1. What are the three components of a
nucleotide?
2. What type of bond connect the
nitrogenous bases?
3. What are the four nitrogenous bases
found in DNA?
4. What molecule does the nitrogenous
base bond to?
5. Describe any patterns you see
regarding the nitrogenous bases.