The individual piece that codes for a trait
Allele
A A
A AA AA
A AA AA
phenotype ratio is? all offspring are he or ho?
AA 4:0 or 1
Homozygous
Two different alleles (Aa)
Heterozygous
Where DNA/Genes are housed
Chromosome
A A
A AA AA
a Aa Aa
phenotype ratio
D/R 4:0 or 1
When one trait presents over another trait
Dominant
One trait x one trait
Monohybrid cross
A a
a Aa aa
a Aa aa
phenotype ratio
D/R 1:1
Two of the same alleles (AA)
Homozygous
Requires two copy's of the trait to present
Recessive trait
The genotype is 4:0 or 1, what are possible parent alleles
AA x AA
aa x aa
The expression of genes
Phenotype
The set of genes an organism carries
Genotype
Aa x Aa what is the geno and phenotype ratio
AA, Aa, aa 1:2:1
D/R 3:1
Traits are passed from parents to offspring
Inheritance