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DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
DNA vs. RNA
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DNA vs. RNA

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About the types RNA, codons, polypeptides, and the difference between DNA and RNA.

About the types RNA, codons, polypeptides, and the difference between DNA and RNA.

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  • 1. DNA vs RNA <ul><li>By GBPO </li></ul>
  • 2. What is RNA? <ul><li>Nucleic acid involved in putting genetic code into action </li></ul><ul><li>long chain of nucleotides </li></ul><ul><li>Copied base sequence of DNA that directs protein synthesis </li></ul>
  • 3. Functions of RNA <ul><li>Involved only in protein synthesis </li></ul><ul><li>Controls assembly of amino acids into proteins </li></ul>
  • 4. Messenger RNA <ul><li>Holds copy of original DNA segment </li></ul><ul><li>Carries copy to other parts of the cell </li></ul>
  • 5. Ribosomal RNA <ul><li>Make up the two subunits of ribosomes </li></ul>
  • 6. Transfer RNA <ul><li>Carries amino acids to ribosomes as specified </li></ul>
  • 7. Review so Far <ul><li>RNA found in nucleus </li></ul><ul><li>Basically throw-away DNA copy that puts DNA code to work </li></ul><ul><li>Three kinds </li></ul><ul><ul><li>mRNA </li></ul></ul><ul><ul><li>tRNA </li></ul></ul><ul><ul><li>rRNA </li></ul></ul>
  • 8. Polypeptides <ul><li>Proteins are made by joining amino acids in long chains </li></ul><ul><li>Only certain polypeptides make up certain amino acids. </li></ul><ul><li>Order they are joined determines properties of the different proteins. </li></ul>
  • 9. Codons <ul><li>group of three nucleotide bases in mRNA </li></ul><ul><li>Specify amino acid needed for protein </li></ul><ul><li>In decoding genetic messages the DNA needs to be converted into a strand of RNA that is used to make proteins. </li></ul>
  • 10. Codons and Polypeptides <ul><li>The order of amino acids and the function determine shape. </li></ul><ul><li>A codon is a three-letter “word” in mRNA that stands for a certain amino acid. </li></ul><ul><ul><li>ATG makes one needed for blonde hair </li></ul></ul>
  • 11. Codons and Polypeptides <ul><li>Almost all amino acids can be specified by more than one codon </li></ul><ul><li>All polypeptide sequences start with the AUG codon (methionine) but certain codons end, or terminate, that chain </li></ul>
  • 12. DNA vs. RNA
  • 13. DNA vs. RNA <ul><li>Sugar </li></ul><ul><ul><li>DNA: deoxyribose </li></ul></ul><ul><ul><li>RNA: ribose </li></ul></ul><ul><li>Bases </li></ul><ul><ul><li>RNA: Adenine, Uracil, Cytosine, Guanine </li></ul></ul><ul><ul><li>DNA: Adenine, Thymine, Cytosine, Guanine </li></ul></ul>
  • 14. DNA vs. RNA <ul><li>Roles: </li></ul><ul><ul><li>DNA: Holds codes for proteins </li></ul></ul><ul><ul><li>RNA: Puts codes into action </li></ul></ul><ul><li>RNA: single stranded </li></ul><ul><li>DNA: double stranded </li></ul>

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