3 TTO Unit 5.1 Genotype and Phenotype

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

Anatololacerta pelasgiana

Today

Curriculum

Unit 5

• Structure
• Assesment

Basics 1 Genotype and Phenotype

• Explanation
• Quiz 

End 

Unit 5 Heredity and Evolution

Book 2/3 B 

Assignment sheets (keep them in your book)

Assessment:

1 SO Unit 5.1 - 5.3 + 5.8: 1x

1 Test Unit 5.1 - 5.8: 3x

Let's do a little inventory..

Which characteristics do you have?

Make sure you write down the results

I can roll my tongue

YES

NO

Which hand do you write with?

LEFT

RIGHT

NO PREFERENCE

Hand clasping?

Today

Basics 1 Genotype and Phenotype

• Explanation 
• Quiz 

End 

Learning objectives: You can explain the difference between genotype and phenotype

You can explain that cells only use the hereditary information that they need

Body cells, chromosomes, DNA

Chromosomes

Inside the cell nucleus are structures called chromosomes

They are DNA strands and contain all of your inherited characteristics

Genes

A gene is a peice of DNA that contains the information for a characteristic 

1. Where can you find this information in your textbook?

                                                        Each body cell contains all the 
                                                   genes but not all genes are active

To inherit = to receive a characteristic from an ancestor by genetic transmission. 

• Genotype = the information for an organism’s complete hereditary characteristics
• Phenotype = visible and invisible physical characteristics of an organism

           Phenotype = genotype + environmental factors. 

Phenotype = genotype + environmental influences

The phenotype changes…

…but the genotype doesn’t.

If you look at this persons hair..

1. Phenotype
2. Genotype
3. Phenotype en Genotype

The eye color of these people are.

1. Phenotype
2. Genotype
3. Phenotype en Genotype

Put in the correct order,
from small to big.

1. cell - chromosome - DNA - gene
2. gene - chromosome - DNA - cell
3. gene - chromosome -cell - DNA
4. gene - DNA - chromosome - cell

Which one is correct?

1. Phenotype = genotype + environment
2. Environment = genotype + phenotype
3. Genotype = phenotype + environment

LET'S PRACTICE

Most people on the Solomon Islands (in the Pacific Ocean) have dark skin and dark hair. Sometimes, however, a child is born with very light-coloured hair.

Make exercise 1-9 in your workbook

Finish it before next lesson

p. 102 - 106

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish