This pedigree shows eye color in a family.
Green eyes are dominant to blue eyes.
All SHADED people have blue eyes.
Step 1: Traits
= Dominant
= recessive
This pedigree shows eye color in a family.
Green eyes are dominant to blue eyes.
All SHADED people have blue eyes.
Step 1: Traits
= Dominant
= recessive
This pedigree shows eye color in a family.
Green eyes are dominant to blue eyes.
All SHADED people have blue eyes.
Step 2: Alleles (letters)
= Green
= blue
This pedigree shows eye color in a family.
Green eyes are dominant to blue eyes.
All SHADED people have blue eyes.
Step 3: Shading
=
What is the genotype for BLUE eyes?
What are the genotypes for GREEN eyes?
Match the vocabulary terms:
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Recessive alleles/genes | arrow_right_alt | Strong |
Dominant allels/genes | arrow_right_alt | Weak |
Match the vocabulary terms:
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
In gene combinations, the capital letter | arrow_right_alt | Recessive |
In gene combinations, the lower case (small) letter | arrow_right_alt | Dominant |
Match the term to its description:
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Heterozygous | arrow_right_alt | bb |
Homozygous Dominant | arrow_right_alt | Bb |
Homozygous Recessive | arrow_right_alt | BB |
Match the vocabulary terms with their definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Genotype | arrow_right_alt | The physical trait a person shows. |
Phenotype | arrow_right_alt | A genotype that contains one dominant allele and one recessive allele (Bb). |
Homozygous / Pure | arrow_right_alt | The actual genes, shown two alleles (letters) for a given trait (BB, Bb, or bb). |
Heterozygous / Hybrid | arrow_right_alt | A genotype that contains two alleles that are either both dominant or both recessive (BB or bb). |
Determine whether the following gene combination is homozygous or heterozygous.
Homozygous (pure) | Heterozygous (hybrid) | |
|---|---|---|
ff | ||
Ff | ||
Hh | ||
TT | ||
RR | ||
Uu | ||
Dd |
