Understanding DNA
Deoxyribonucleic
Acid
What did Rosalind Franklin do?
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What James Watson & Francis Crick
figure out?
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What did Erwin Chargaff discover?
A
T
C
G
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nucleotide
sugar
Are made up of
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What are the three parts of a
nucleotide?
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Nucleic acids store
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examples: DNA and RNA
phosphate
nitrogen
base
Label the Nucleotide
___. Sugar (deoxyribose)
___. Phosphate Group
___. Nitrogen Bases
B
A
C
Rules for Base Pairing in DNA:
Cytosine always pairs with
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Adenine always pairs with
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What is the function of DNA?
*_______________________
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Phosphate
Nitrogen Bases
Sugar
Fill in the base pairs. Remember your base pair rules.
Label:
-Sugar-phosphate backbone
-Base
-Hydrogen bonds
Fun Facts
If you wrote down all of the
bases in one cell, you would
fill a stack of 1,000 phone
books with A's, T's, G's and C's
Fun Facts
If you unraveled all your
chromosomes from all of
your cells and laid out the
DNA end to end, the strands
would stretch from the Earth to
the Moon about 6,000 times.
Understanding RNA
Ribonucleic
Acid
Label the RNA Nucleotide
___. Sugar (ribose)
___. Phosphate Group
___. Nitrogen Bases
B
A
C
Rules for Base Pairing in RNA:
Cytosine always pairs with
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Adenine always pairs with
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What base that is in DNA is NOT in
RNA? ________________________
What is the function of RNA?
* Helps make ___________________
Types of RNA
A. ______________ (mRNA)
B. ______________ (tRNA)
C. ______________ (rRNA)
Label:
-Base
-Ribose
-Phosphate group
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