DNA vs. RNA

Learning Target:

I can compare and contrast the structure and function of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

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* Use with DNA vs. RNA Note-taking Guide

Let's Review What We Know About DNA

• What does DNA stand for?
• Where is DNA found in eukaryotic cells?
• What is the shape of DNA?
• DNA is a ________ -stranded molecule.
• Who is credited for discovering the structure of DNA?
• DNA is composed of repeating subunits called _____________.
• What are the 4 bases that make up the rungs of the DNA ladder?  
• Adenine always pairs with _______________.
• Guanine always pairs with _____________
• The sides of the DNA ladder are phosphates and ______________.
• What is the complementary sequence for the strand of DNA?

  AAT  GCA GGA TTT

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ANSWERS TO REVIEW QUESTIONS

• Deoxyribonucleic acid
• In the nucleus
• Double helix or twisted ladder
• Double-stranded molecule
• Watson and Crick
• nucleotides
• adenine, guanine, cytosine, thymine
• thymine
• cytosine
• deoxyribose sugar
• TTA CGT CCT AAA

Who am I?

• I am single stranded.
• I am found only in the nucleus of eukaryotic cells (exception during mitosis when the nucleus is temporarily disassembled).
• I am a nucleic acid.
• I am arranged as a double helix or “twisted ladder”
• I have the sugar ribose.
• I am responsible for making proteins.
• I have the sugar deoxyribose.
• I include the bases guanine, cytosine, and adenine.
• In eukaryotic cells, I travel out of the nucleus to a ribosome.
• I have the base thymine.
• I have the base uracil.
• I have three different forms.

Who Am I?- Answers

• RNA
• DNA
• RNA, DNA
• DNA
• RNA
• RNA
• DNA
• DNA, RNA
• RNA
• DNA
• RNA
• RNA

Which Type of RNA?

• Uses DNA to create a useable code that is delivered to ribosomes.

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• Assembles amino acids to make proteins.

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• Carries amino acids to ribosome to attach to mRNA codon.

Which Type of RNA? Answers

• mRNA
• rRNA
• tRNA