Punnett Squares
Genotypes
Phenotypes
Vocabulary
Random Facts
100
Name the correct genotype for box number four.
What is ss?
100
The genotype for brown hair gene (B) and carrying a blonde hair gene (b)
What is Bb?
100
In pea plants, there are P = purple flowers (dominant) and p = white flowers. A plant with genotype PP will show this flower color.
What is purple?
100
These types of traits occurs over time. They're the things you like to do, the things you have learned, your abilities and skills.
What are acquired traits?
100
This is the location of chromosomes.
What is DNA?
200
The percent of offspring that will be yellow.
What is 50%?
200
The capital letter in a genotype represents this kind of trait.
What is dominant?
200
In a trait where B = brown eyes, and b = blue eyes, a person with genotype Bb will show this eye color.
What is brown?
200
The physical appearance of a genetic trait.
What is phenotype?
200
This scientists studied pea plants and is known as the father of genetics.
Who is Gregor Mendel?
300
This is the genotype that will be found in all four boxes of the Punnett Square.
What is Tt?
300
The lowercase letter in a genotype represents this kind of trait.
What is recessive?
300
A person who is heterozygous for having the ability to roll their tongue (Rr) will have this phenotype.
What is the ability to roll their tongue?
300
The name of a genotype that contains two of the same gene.
What is homozygous?
300
This type of blood is the rarest in the world.
What is AB+?
400
Two parents both have heterozygous brown hair genotypes. This is their Punnett Square for hair color.
What is 
?
400
An organism with the genotype Gg for a green stem reproduces asexually. This is the genotype of their offspring for the color of the stem.
What is Gg?
400
In this example showing birds with long beaks (B) and birds with short beaks (b), 75% of the offspring will have this phenotype.
What is short beaks?
400
When one parents reproduces by itself, creating a clone as offspring.
What is asexual reproduction?
400
This happens when genes break, disappear, or change within an organism.
What is evolution?
500
One parent is homozygous dominant for wide eyes (W) and the other parent is homozygous recessive for narrow eyes (w). This is their Punnett Square for eye shape.
What is 
?
500
This is the genotype for someone who is heterozygous for freckles (F).
What is Ff?
500
In rabbits, having black fur (B) is dominant to having chocolate fur (b). If a rabbit is homozygous recessive, this will be the phenotype.
What is chocolate fur?
500
The name of specific genes, represented by a single letter in a genotype.
What is allele?
500
True or false: All humans have ~99.9% identical DNA.
What is true?