all the punnett squares

The instruction of one allele covers up the instruction

of the other allele in a homologous pair. Symbolized by a capital letter.

• Recessive Allele

• Dominant Allele

• Heredity

• Trait

The instructions of this allele are covered up by the other allele in a homologous pair. Symbolized by a small letter.

• Homozygous

• Dominant

• Recessive

• Genetics

The letter symbols for both homologous alleles.

BB Bb bb AA Aa aa

• Genotype

• Phenotype

• Recessive

• Dominant

A genotype where only dominant alleles were passed on

from both parents for one trait

BB AA TT LL

• Homozygous Recessive

• Homozygous Dominant

• Dihybrid

• Heredity

A genotype where only recessive alleles

were passed on from both parents for one trait

bb aa tt ll

• Heredity

• Homozygous Dominant

• Homozygous Recessive

• Phenotype

A genotype where one dominant and one recessive allele was passed on from both parents for one trait.

Bb Aa Tt Ll

• Allele

• Homozygous Dominant

• Homozygous Recessive

• Heterozygous

The observable traits dictated by the genotype

• Phenotype

• Genotype

• Homozygous Recessive

• Homozygous Dominant

Tt is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

This type of inheritance pattern shows BOTH traits in possible offspring

• complete dominance
• incomplete dominance
• co-dominance
• dominant pattern

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%