Biology HL
Biology HL
4
Chapters
553
Notes
Theme A - Unity & diversity
Theme A - Unity & diversity
Theme B - Form & Function
Theme B - Form & Function
Theme C - Interaction &  Interdependence
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Theme D - Continuity & Change
IB Resources
Theme A - Unity & diversity
Biology HL
Biology HL

Theme A - Unity & diversity

Unlocking DNA Dive Into The Double Helix!

Word Count Emoji
381 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 15th Oct 2024

Table of content

Hey future biologist! Ready to unravel the secrets of life itself? Let's dive into the DNA (Deoxyribonucleic Acid) world. Think of it as the instruction manual that guides all the living things on Earth. 🌍

DNA - the double helix dance party 🎉

DNA looks like a twisted ladder, and it's known as a double helix. Picture two snakes wrapping around each other, and you'll get the idea!

Components 🧩

  • Nucleotides: The building blocks of DNA.
    • Deoxyribose sugar: The backbone, it holds everything together.
    • Phosphate group: The connecting link between sugars.
    • Bases: There are 4 cool ones here:
      • Adenine (A)
      • Cytosine (C)
      • Guanine (G)
      • Thymine (T)

Partners in Crime 🤝

  • A dances only with T (they're exclusive!).
  • G has eyes only for C.

These pairs are held together by something called hydrogen bonds. They're like the magnetic pull between two BFFs.

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IB Resources
Theme A - Unity & diversity
Biology HL
Biology HL

Theme A - Unity & diversity

Unlocking DNA Dive Into The Double Helix!

Word Count Emoji
381 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 15th Oct 2024

Table of content

Hey future biologist! Ready to unravel the secrets of life itself? Let's dive into the DNA (Deoxyribonucleic Acid) world. Think of it as the instruction manual that guides all the living things on Earth. 🌍

DNA - the double helix dance party 🎉

DNA looks like a twisted ladder, and it's known as a double helix. Picture two snakes wrapping around each other, and you'll get the idea!

Components 🧩

  • Nucleotides: The building blocks of DNA.
    • Deoxyribose sugar: The backbone, it holds everything together.
    • Phosphate group: The connecting link between sugars.
    • Bases: There are 4 cool ones here:
      • Adenine (A)
      • Cytosine (C)
      • Guanine (G)
      • Thymine (T)

Partners in Crime 🤝

  • A dances only with T (they're exclusive!).
  • G has eyes only for C.

These pairs are held together by something called hydrogen bonds. They're like the magnetic pull between two BFFs.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟