Genotype & Fenotype

• Biologie
• Middelbare school
• havo
• Leerjaar 2

Welcome!

Today's lesson:

Introduction

Why biology?

Heredity and evolution

Discussing phenotype and genotype (paragraph 5.1)

Making exercises paragraph 5.1

Who am I?

Marijn Durinck

26 years old, 198cm tall

Hiking, exploring nature 

Playing music (guitar, bass, piano)

Playing games 

''Why do we need to learn this?''

Discovering what bring you joy/what you're good at

Influence on your curriculum

Knowledge to understand the world around you (now or later). 

Fun and safe time 

What do I expect from you?

I can't reach these goals on my own so I expect you to:

Bring your book and notebook

Make homework

Start of the lesson 

Quiet during explanation (fingers)

Phones

Who are you?

I will check the presence by calling out everyone's name. When you hear your name, please stand up, introduce yourself and answer the following questions (rest of the group is quiet):

Which day of the holiday would you like to repeat?

What is the most delicious thing you have eaten this holiday?

What are we going to learn today?

Today we will be learning:

How the genetic material in a cell is build up. 

What a genotype and phenotype is. 

What the difference is between these two is. 

Cell -> DNA

A human body cell has a nucleus where the genetic material is stored. This genetic material is organized through 46 strings, called chromosomes. These chromosomes consist of DNA. All this genetic material is called you genotype.

Fertilization and cell division

Sex cells (sperm and egg cells) have 23 chromosomes. During fertilization these two will merge together so an new body cell of 46 chromosomes is made. Then a cell divides and creates new body cells (embryo). 

How your genotype is determined

Amount of chromosomes in other species

Your phenotype

Your appearance is called your phenotype. This is partly determined by your genotype, but not entirely. You can dye your hair, put on make up or undergo plastic surgery. This changes your phenotype, but not your genotype. 

Your phenotype changes

Get to work

Start with the exercises of paragraph 5.1, which includes exercise 5. This will be homework for the next lesson. 

Has the genotype of phenotype changed?

Someone got skin cancer for lying in the sun for too long. Has the genotype or phenotype changed?

A pollen (sex cell) of a tree has 64 chromosomes. How many chromosomes do the body cells have?

What changes throughout your life?

1. Phenotype
2. Genotype