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Unraveling the DNA Structure: Your Genetic Blueprint Revealed

Discover the building blocks of life in Chapter 12 as we delve into the intricate structure of DNA. Explore how nucleotides, composed of deoxyribose sugar, phosphate group, and nitrogenous base, come together to form the iconic twisted ladder shape. Learn about the four nitrogenous bases - Adenine, Guanine, Cytosine, and Thymine - and their complementary pairings that create the steps of the DNA ladder. Uncover the secrets of your genetic code and understand what makes you uniquely you.

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Unraveling the DNA Structure: Your Genetic Blueprint Revealed

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Presentation Transcript

  1. Chapter 12:DNA structure

  2. What makes up the molecule that makes up you! • DNA is made up of units called NUCLEOTIDES

  3. Nucleotides are made up of 3 parts: • 5-Carbon sugar called Deoxyribose • Phosphate Group • Nitrogenous Base

  4. Twisted Ladder • Those Nucleotides join together to form the shape that we are all familiar with • Deoxyribose and Phosphate Group make up the long, vertical portion of ladder • Nitrogenous Base makes up the steps of the ladder

  5. The Steps of the Ladder • What makes up the steps of the DNA ladder? • 4 different bases make up the nitrogenous base • Adenine (A) • Guanine (G) • Cytosine (C) • Thymine (T)

  6. Each base has a friend • Each horizontal ladder step is composed of 2 complimentary bases • A pairs up with T • C pairs up with G • T pairs up with A • G pairs up with C

  7. http://www.youtube.com/watch?v=qy8dk5iS1f0

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