1. Genetics

2. Genetics the study of heredity
Heredity – the passing of traits from parents to offspring

3. Traits
Characteristics of an organism

4. Traits

5. Genes & Alleles Genes – factors that control traits
Alleles- different forms of a gene, control the inheritance of traits
Dominant alleles – trait always shows up (represented by capital letters)
Recessive alleles --- trait only shows up when the dominant allele is not present (represented by lowercase letters)

6. Gametes & Zygotes
Gamete – a sex cell, an organism receives one allele for each trait from both parents
A zygote is a cell that results from fertilization

7. Purebred or Hybrid?
Purebred or homozygous – contains either 2 dominant or 2 recessive alleles (EX: AA or aa)
Hybrid or heterozygous – contains one dominant and recessive allele (Aa)

8. Phenotype & Genotypes
Phenotype- the physical characteristics (what it looks like)
Genotype – the genetic make up (ex: TT. Tt, tt)

9. Punnett Squares
A diagram that shows the gene combinations that could result