3 TTO Unit 5.1 Genotype and Phenotype

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Slide 1 - Diapositive

Anatololacerta pelasgiana

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Unit 5 Heredity and Evolution
Book 2/3 B 

Minor test
Major test

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Let's do a little inventory..
Which characteristics do you have?
Make sure you write down the results

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I can roll my tongue
YES
NO

Slide 7 - Sondage

Which hand do you write with?
LEFT
RIGHT
NO PREFERENCE

Slide 8 - Sondage

Hand clasping?

Slide 9 - Sondage

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Today
Basics 1 Genotype and Phenotype
  • Explanation 



Learning objectives: You can explain the difference between genotype and phenotype
You can explain that cells only use the hereditary information that they need

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Body cells, chromosomes, DNA

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Chromosomes
Inside the cell nucleus are structures called chromosomes
They are DNA strands and contain all of your inherited characteristics

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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?

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

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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. 

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Phenotype = genotype + environmental influences
The phenotype changes…

…but the genotype doesn’t.

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If you look at this persons hair..
A
Phenotype
B
Genotype
C
Phenotype en Genotype

Slide 21 - Quiz

The eye color of these people are.
A
Phenotype
B
Genotype
C
Phenotype en Genotype

Slide 22 - Quiz

Put in the correct order,
from small to big.
A
cell - chromosome - DNA - gene
B
gene - chromosome - DNA - cell
C
gene - chromosome -cell - DNA
D
gene - DNA - chromosome - cell

Slide 23 - Quiz

Which one is correct?
A
Phenotype = genotype + environment
B
Environment = genotype + phenotype
C
Genotype = phenotype + environment

Slide 24 - Quiz