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Genotype and Phenotype
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Slide 1

Genotype and Phenotype

Genotype and Phenotype

What is the difference?

Slide 2

Review Words

Review Words

Characteristics are the category of a trait

Example eye color, height, likes/dislikes

Traits the physical, social, and emotional qualities of an organism

Example blue eyes, tall, hates carrots

Dominant Trait when a majority of an organism shows the trait.

Example most pea plants show as tall

Recessive Trait when a minority of an organism shows the trait.

Example few pea plants show as short

Alleles all the possible choices for a characteristic

Example eye color blue, brown, gray, green

Slide 3

Genotype

Genotype

How the genes code for a specific trait.

If the trait is dominant it uses a capital letter

Example Tall (T)

If the trait is recessive it uses the same letter but lower case

Example short (t)

Genotypes always have two letters one for dad and one for mom

Slide 4

Types of genotype

Types of genotype

Purebred (homozygous) dominant the genes only have the dominant trait in its code.

Example Dominant Tall -- TT

Purebred (homozygous) recessive the genes only have the recessive trait in its code.

Example Recessive short tt

Hybrid (heterozygous) the genes are mixed code for that trait.

Example hybrid Tall -- Tt

Slide 5

Phenotype

Phenotype

The outward appearance of the trait.

How an organism looks

How an organism acts

How an organism feels

Slide 6

Tricks to remembering the difference between Genotype and Phenotype

Tricks to remembering the difference between Genotype and Phenotype

Genotype deals with GENE CODE.

Phenotype deals with looks you can take a PHOTO with.

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