1 / 5

What do you know about DNA?

What do you know about DNA?. Agree (A) or Disagree (D)?. DNA is found in all living things DNA is a small molecule All DNA molecules are the same DNA is what makes up genes The DNA of an organism can be changed You can live without DNA. Structure of DNA.

Download Presentation

What do you know about DNA?

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. What do you know about DNA?

  2. Agree (A) or Disagree (D)? • DNA is found in all living things • DNA is a small molecule • All DNA molecules are the same • DNA is what makes up genes • The DNA of an organism can be changed • You can live without DNA

  3. Structure of DNA • Polymer made of monomerscalled nucleotides • 2 “backbones”: a sugar and a phosphate • Double helix shape • Nitrogen-containing bases: • A: Adenine • T: Thymine • C: Cytosine • G: Guanine

  4. Bases come in 2 sizes • Purines: A and G • 2 rings • PUGA 2 • Pyrimidines: T and C • 1 ring • A purine always bonds with a pyrimidine • Chargoff’s rule: • A and T • C and G

  5. What Does DNA Do? Stores information • Stays in nucleus • “Cookbook” • DNA is a HUGE molecule (3 BILLION base pairs in humans) • Information is used for making PROTEINS • Proteins regulate everything

More Related