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

Unity & Diversity Delving Into Species' Genomes

Word Count Emoji
453 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

What's a genome? 📖

  • Definition: A genome is like the entire instruction manual of an organism! It contains all the genetic information made of DNA, including the full base sequence of chromosomes.
  • Real-World Example: Imagine your favorite video game - the genome is like the game's entire code, containing all the rules and characters!

Genes - the functional units 🧩

  • Genes: Parts of the genome, like chapters in a book. They carry specific DNA sequences with hundreds or thousands of bases.
  • Example: If your genome is a cookbook, then genes are the individual recipes! Yum!

Unity within species 🦓

  • Common Genes: All members of the same species usually have the same genes in the same order.
  • Meiosis & Genetic Diversity: Think of shuffling cards. During meiosis, parts of chromosomes can be exchanged, but without losing or duplicating genes. It's like mixing up the ingredients but still making a great cake!

Diversity within genomes 🌈

  • Alleles: Alternative forms of a gene. It's like having different flavors of ice cream. One allele might have adenine at a place, another might have cytosine.
  • Example: Chocolate chip and mint chip ice creams might look similar but taste different. That's alleles for you!

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

Theme A - Unity & diversity

Unity & Diversity Delving Into Species' Genomes

Word Count Emoji
453 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

What's a genome? 📖

  • Definition: A genome is like the entire instruction manual of an organism! It contains all the genetic information made of DNA, including the full base sequence of chromosomes.
  • Real-World Example: Imagine your favorite video game - the genome is like the game's entire code, containing all the rules and characters!

Genes - the functional units 🧩

  • Genes: Parts of the genome, like chapters in a book. They carry specific DNA sequences with hundreds or thousands of bases.
  • Example: If your genome is a cookbook, then genes are the individual recipes! Yum!

Unity within species 🦓

  • Common Genes: All members of the same species usually have the same genes in the same order.
  • Meiosis & Genetic Diversity: Think of shuffling cards. During meiosis, parts of chromosomes can be exchanged, but without losing or duplicating genes. It's like mixing up the ingredients but still making a great cake!

Diversity within genomes 🌈

  • Alleles: Alternative forms of a gene. It's like having different flavors of ice cream. One allele might have adenine at a place, another might have cytosine.
  • Example: Chocolate chip and mint chip ice creams might look similar but taste different. That's alleles for you!

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 🌟