Understanding DNA

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Understanding DNA
Deoxyribonucleic Acid
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What did Rosalind Franklin do?

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3
What James Watson Francis Crick figure out?

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4
What did Erwin Chargaff discover?

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C
G
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nucleotide
Nucleic Acids

• Are made up of _________________________
• What are the three parts of a nucleotide?
• ___________________________
• ___________________________
• ___________________________
• Nucleic acids store _________________________

examples DNA and RNA
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Label the Nucleotide ___. Sugar
(deoxyribose) ___. Phosphate Group ___.
Nitrogen Bases
B
A
C
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Rules for Base Pairing in DNA

• Cytosine always pairs with _______________________
  ____
• 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.
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Label -Sugar-phosphate backbone -Base -Hydrogen
bonds


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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

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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.
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Understanding RNA
Ribonucleic Acid
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Label the RNA Nucleotide ___. Sugar
(ribose) ___. Phosphate Group ___.
Nitrogen Bases
B
A
C
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Rules for Base Pairing in RNA

• Cytosine always pairs with _______________________
  _______
• Adenine always pairs with ________________________
  ______
• What base that is in DNA is NOT in RNA?
  ________________________

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What is the function of RNA?
Helps make ___________________
Types of RNA A. ______________ (mRNA)
B. ______________ (tRNA) C. ______________
(rRNA)
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Label -Base -Ribose -Phosphate group
__________
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