1 / 13

How Does a Cell Interpret Codons? Directions:

How Does a Cell Interpret Codons? Directions: Read the accompanying worksheet and follow the step-by step directions to make the Transcription/ Translation foldable. Be sure to answer ALL questions on the worksheet while you are completing the foldable.

palila
Download Presentation

How Does a Cell Interpret Codons? Directions:

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. How Does a Cell Interpret Codons? • Directions: • Read the accompanying worksheet and follow the step-by step directions to make the Transcription/ Translation foldable. Be sure to answer ALL questions on the worksheet while you are completing the foldable. • You may use this PowerPoint as a guide. Do not copy directly from it, or you will not benefit from the activity as much as you should. • You will need your notes packet in order to complete the activity. • If you have any questions, discuss it in your group, and with the group next to you before asking for help from your teachers.

  2. 1. Holding the template with Tabs 3 and 4 facing you, fold the template in half crosswise.

  3. Open the sheet;

  4. then fold the left and right edges toward the center fold. You should see Tab 1 and Tab 2 facing you.

  5. A certain gene has the following base sequence: TACGACAAGTCCACAGTA • Write this sequence from top to bottom on Tab 1 (labeled DNA “Sense” Strand). • Label the top end “ 3’ ” and the bottom end “ 5’ ”. • Write the complementary DNA sequence on Tab 2 (labeled DNA “Coding” Strand). • Label the top end “ 5’ ” and the bottom end “ 3’ ”.

  6. Open Tab 2 (labeled DNA “Coding” Strand).

  7. From top to bottom, write the sequence of the mRNA transcribed from the Template Strand on Tab 3 (mRNA). • Label the top end of the mRNA strand “ 5’ ” and the bottom end “ 3’ ”.

  8. Using either codon chart in your Notes packet, write the amino acid sequence of the polypeptide on Tab 4 (PolypeptideA).

  9. On the Tab 2 (labeled DNA “Coding” Strand), rewrite the nucleotide sequence in the opposite order (flip the sequence from top to bottom). • Remember, the DNA strand is “read” in opposite directions on each strand. • What label will you use for the top end?

  10. From top to bottom, write the sequence of the mRNA transcribed from the Coding Strand on Tab 5 (mRNA).

  11. Using either codon chart in your Notes packet, write the amino acid sequence of the polypeptide on Tab 6 (PolypeptideB).

  12. Reverse the fold on Tab 2. • You should see Polypeptide A and Polypeptide B next to each other.

More Related