Tracing Genes Through Generations

Tracing Genes Through Generations

Humans have 46 Chromosomes. 23 from mother and 23 from father.

​Contains all of our genetic information. What we look like, and how we grow/develop, and more.

​​DNA

​A section of DNA that codes for a protein leading to our traits.

​​Genes

​A trait is any gene determined characteristic and is often determined by more than one gene.

Traits

DNA is wrapped up into tight coils that make up Chromosomes.

Chromosomes are made up of two sister chromatids.

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​Chromosomes

Chromatids

Two or more forms of a gene and they are found on the same place of the chromosome.

(hair color, eye color)

​Allele

The observable physical traits we see in an organism.

​PHENOTYPE

Organisms Genetic Information

BB-Homozygous Dominant

Bb-Heterozygous

bb-Homozygous Recessive

​GENOTYPE

Heredity: Passing DNA from Parents to Offspring.

Multiple Choice

Hair color is an example of?

• Phenotype

• Genotype

Probability: How likely something is going to happen.

​What are the odds that.....

-flip a heads on a coin?

-roll a 3 on a die?

• Change these into a percentage

Open Ended

What does probability have to do with genetics?