1 / 23

Classwork

Classwork. On pg. 94 of your notebooks Split page in ½ Top ½- Draw fig 8.10 (pg.239)- color code Make a double-bubble map comparing and contrasting DNA and RNA (239-240) On pg. 96 of your notebooks Draw and label figure 8.11 (pg 241) in book Needs to have color. 8.4 Transcription.

kirestin-battle
Download Presentation

Classwork

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Classwork • On pg. 94 of your notebooks • Split page in ½ • Top ½- Draw fig 8.10 (pg.239)- color code • Make a double-bubble map comparing and contrasting DNA and RNA (239-240) • On pg. 96 of your notebooks • Draw and label figure 8.11 (pg 241) in book • Needs to have color

  2. 8.4 Transcription 2.1 Atoms, Ions, and Molecules • Set up Cornell Notes on pg. 95 • Topic: 8.4 Transcription • Essential Question: • What is the central dogma? • Why can an mRNA strand made during transcription be thought of as a mirror image of the DNA strand from which it was made? • Don’t forget to add it to your T.O.Contents!

  3. There are two types of endoplasmic reticulum. • rough endoplasmicreticulum Have bumps called ribosomeswhich link amino acids together to form proteins

  4. nucleotide unzips Review: Replication nucleotides

  5. nucleotide new strand DNA polymerase • 2. DNA polymerase (poly-mer-ace) enzymes bond the nucleotides together to form the double helix. complementary

  6. nucleotide new strand DNA polymerase complementary

  7. new strand original strand Two molecules of DNA 3. Two new molecules of DNA are formed, each with an original strand and a “complementary” newly formed strand. complementary Why do we call the new strand a complementary strand and not an identical strand?

  8. Please complete the two DNA sequences below : T A C G T A T G A A A C T G G T T T A G A A T T

  9. T A C G T A T G A A A C A T G C A T A C T T T G T G G T T T A G A A T T A C C A A A T C T T A A

  10. Proteins are used for movement, eyesight, and digestion.

  11. KEY CONCEPT Transcription converts a gene into a single-stranded RNA molecule. RNA DNA

  12. RNA carries DNA’s instructions. • The central dogma states that information flows in one direction from DNA to RNA to proteins.

  13. replication transcription translation • The central dogma includes three processes. • 1. Replication • 2.Transcription • 3.Translation • RNA is a link between DNA and proteins.

  14. RNA differs from DNA in three major ways. RNA Ribose Sugar Uracil (U) Single-Stranded DNA Deoxyribose Sugar Thymine (T) Double-Stranded

  15. Transcription copies genes from DNA to make a strand of RNA.

  16. To transcribe is to make or translate a copy of DNA into RNA

  17. transcription complex start site nucleotides • RNA polymerase and other proteins recognize the start of a gene and unwinds a segment of it.

  18. transcription complex start site nucleotides Transcription Complex START nucleotides

  19. DNA RNA polymerase moves along the DNA • Nucleotides pair with one strand of the DNA. • RNA polymerase bonds the nucleotides together. • The DNA helix winds again as the gene is transcribed. RNA

  20. Transcribe this DNA strand into a mRNA strand DNA AAA TAG GAT ATC GGA TAC AGT RNA UUU AUC CUA UAG CCU AUG UCA

  21. RNA • The RNA strand detaches from the DNA once the gene is transcribed.

  22. Transcription makes three types of RNA. • Messenger RNA (mRNA) carries the message that will be translated to form a protein. • Ribosomal RNA (rRNA) forms part of ribosomes where proteins are made. • Transfer RNA (tRNA) brings amino acids from the cytoplasm to a ribosome.

  23. one gene growing RNA strands DNA Replication vs. Transcription Double Bubble (pg.95) • Transcription and replication are similar, but have different end results. • Replication copiesall the DNA;transcription copiesa gene. • Replication makesone copy;transcription canmake many copies.

More Related