Psychology SL
Psychology SL
9
Chapters
238
Notes
Unit 1 - Research Methodology
Unit 1 - Research Methodology
Unit 2 - Biological Approach To Behaviour
Unit 2 - Biological Approach To Behaviour
Unit 3 - Cognitive Approach To Behaviour
Unit 3 - Cognitive Approach To Behaviour
Unit 4 - Sociocultural Approach To Behaviour
Unit 4 - Sociocultural Approach To Behaviour
Unit 6 - Health psychology
Unit 6 - Health psychology
Unit 7 - Pyschology Of Human Relationships
Unit 7 - Pyschology Of Human Relationships
Unit 8 - Developmental psychology
Unit 8 - Developmental psychology
Unit 9 - Internal Assessment
Unit 9 - Internal Assessment
Unit 10 - The IB Curriculum - A Conceptual Model
Unit 10 - The IB Curriculum - A Conceptual Model
IB Resources
Unit 2 - Biological Approach To Behaviour
Psychology SL
Psychology SL

Unit 2 - Biological Approach To Behaviour

Unlocking Genetics: From Genotype To Phenotype & Beyond

Word Count Emoji
688 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Basics genotype & phenotype

  • Genotype = The genetic makeup of an individual (your internal DNA instruction manual).
  • Phenotype = Observable traits or characteristics (like eye color).

Fun Fact: Think of genotype as the recipe and phenotype as the cake. The recipe tells you how to make it, but the cake is what you see and taste!

What is gene expression?

  • It's how the genotype transforms into the phenotype.
  • Genes give instructions to make functional products - mostly proteins.
  • Proteins = Chains of amino acids. They're the workers in our body, following the DNA's instructions!

Two major steps of making a protein

  • Transcription: It's like photocopying! The gene's sequence is copied to create an RNA molecule. This happens in the cell's nucleus.
  • Translation: Reading aloud from the photocopy! The RNA is decoded into amino acids, building the protein. This happens in the ribosomes.

Real-world analogy: It's like translating a book. Transcription is copying the story in one language, and translation is converting it to another language!

Ribosomes

  • The cellular structures where translation happens.
  • They grab the RNA, find the starting point, and build the protein by adding one amino acid at a time.
  • Once the protein is made, it's sent to do its job in or out of the cell.

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IB Resources
Unit 2 - Biological Approach To Behaviour
Psychology SL
Psychology SL

Unit 2 - Biological Approach To Behaviour

Unlocking Genetics: From Genotype To Phenotype & Beyond

Word Count Emoji
688 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Basics genotype & phenotype

  • Genotype = The genetic makeup of an individual (your internal DNA instruction manual).
  • Phenotype = Observable traits or characteristics (like eye color).

Fun Fact: Think of genotype as the recipe and phenotype as the cake. The recipe tells you how to make it, but the cake is what you see and taste!

What is gene expression?

  • It's how the genotype transforms into the phenotype.
  • Genes give instructions to make functional products - mostly proteins.
  • Proteins = Chains of amino acids. They're the workers in our body, following the DNA's instructions!

Two major steps of making a protein

  • Transcription: It's like photocopying! The gene's sequence is copied to create an RNA molecule. This happens in the cell's nucleus.
  • Translation: Reading aloud from the photocopy! The RNA is decoded into amino acids, building the protein. This happens in the ribosomes.

Real-world analogy: It's like translating a book. Transcription is copying the story in one language, and translation is converting it to another language!

Ribosomes

  • The cellular structures where translation happens.
  • They grab the RNA, find the starting point, and build the protein by adding one amino acid at a time.
  • Once the protein is made, it's sent to do its job in or out of the cell.

Unlock the Full Content! File Is Locked Emoji

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