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?
Weak
In gene combinations, the lower case (small) letter
Strong
In gene combinations, the capital letter
Dominant
Recessive
Match the term to its description:
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Homozygous Dominant | arrow_right_alt | bb |
Homozygous Recessive | arrow_right_alt | Bb |
Heterozygous | arrow_right_alt | BB |
Match the vocabulary terms with their definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Heterozygous / Hybrid | arrow_right_alt | The physical trait a person shows. |
Homozygous / Pure | arrow_right_alt | A genotype that contains one dominant allele and one recessive allele (Bb). |
Phenotype | arrow_right_alt | The actual genes, shown two alleles (letters) for a given trait (BB, Bb, or bb). |
Genotype | 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 |
The diagram below shows the inheritance of a trait. The dominant trait is represented by a capital letter R and the recessive trait is represented by a lowercase letter r.
What would be the genotype of the offspring produced?
