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  1. DNA vs. RNA STRUCTURE AND FUNCTION

  2. Objectives: After going through this lesson, you are expected to: • Explain the DNA and RNA structure and function; • Distinguish the differences and similarities between RNA and DNA ; and • Show interest to the importance of DNA and RNA in the human body

  3. “WORD SEARCH”FIND THE HIDDEN WORDS IN THE GRID. 1. R_B_S_2. D_O_Y_IB_SE3. _O_B_E S_RA_D4. N_C_EO_I_E_5. _I_G_E _T_AN_

  4. ANSWERS: • RIBOSE • DEOXYRIBOSE • DOUBLE STRAND • NUCLEOTIDES • SINGLE STRAND

  5. ENGAGEMENT: “WORD SEARCH” FIND THE HIDDEN WORDS IN THE GRID.

  6. EXPLORE Getting to know the DNA and RNA structure

  7. Exploration: “video presentation”

  8. Questions: • What is DNA? • What is RNA? • What is/are the differences between RNA and DNA? • What is the sugar in DNA? • What is the sugar in RNA?

  9. Deoxyribonucleic Acid Portions of DNA are called genes. DNA is tightly wound into chromosomes and located in the nucleus of cells. DNA is DOUBLE STRANDED(2 sides) Nucleus Chromosomes Genes Segments of DNA

  10. Ribonucleic Acid RNA is SINGLE STRANDED and does not have to stay in the nucleus! RNA is not found in chromosomes because it does not carry the genetic code, however it can read the DNA code and take the information out of the nucleus. RNA’s main job is to build proteins!

  11. DNA Structure • The building blocks of DNA are called Nucleotides. • One nucleotide is made of 3 important things: 1. 5-Carbon Sugar Deoxyribose 2. Phosphate 3. Nitrogen base there are 4 nitrogen bases in DNA: Adenine, Guanine, Cytosine, and Thymine that pair together) A  T C G

  12. RNA Structure • The building blocks of RNA are Nucleotides, just like DNA. • A Nucleotide in RNA is still made of 3 important things: 1. 5-Carbon Sugar - Ribose (instead of Deoxyribose) 2. Phosphate 3. Nitrogen base there are 4 nitrogen bases in RNA, A,G,C, and U that pair together) A  U C G

  13. DNA RNA

  14. Both DNA and RNA: contain the same four nitrogenous bases have the same five carbon sugars contain phosphate groups

  15. ElaborationCOMPARE DNA AND RNA

  16. ANSWER:

  17. evaluation • Give the differences and similarities of DNA and RNA using a Venn Diagram.

  18. ASSIGNMENT In a 1 whole sheet of paper, answer the following questions: • What is the role of DNA and RNA in the human body? • Enumerate and explain the central dogma of molecular biology.

  19. “End of presentation” THANK YOU FOR LISTENING!

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