Build your own dog !

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Directions :

• Pick randomly a piece of dog DNA
• This is the recipe for a dog trait

Student’s explanations

thanks to Alison, Grégoire and Paul !

• The genome is made of a lot of chromosomes. Each chromosome is composed with just a DNA strand. This chromosome is composed of genes that give informations on physicals traits .

• The genetic code is the collection of all the genes of a living being.

Each gene exists through different versions called alleles :

Each allele is the recipe for a specific molecule created by the cell.

For example : One gene is coding for hair color

its allele B is the recipe for a Black pigment

its allele b is the recipe for a brown pigment

its allele r is the recipe for a red pigment

its allele y is the recipe for a yellow pigment

• Every person is different because each person has a unique genome.

Everybody has a different genetic code and so everybody has different physical traits.

If just a gene changes, the trait also changes and the person is different.

It is the proof that each genome is unique.

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•  When you’ve finished,  draw your dog.

Paul’s dog	Alison’s dog	Grégoire’s dog