Mendels' Experiments
By: Kealee Rains and Ethan Carter
What is Mendels' Experiments?
Mendel discovered that certain traits show up in offspring plants without any blending of parent characteristics. This idea was formed by many observations of pea plants (pisum sativum).
How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz
Seven Traits
Mendal observed seven traits that only occur in one of two forms.
- Flower color is purple or white
- Flower position is axil or terminal
- Stem length is long or short
- Seed shape is round of wrinkled
- Seed color is yellow or green
- Pod shape is inflated or constricted
- pod color is yellow or green
Pea Experiment
Punnet Square
This is a simple and easy way to set up the types on the outside of the square and combine them together to figure out the type of offspring you will be creating.
Observation
This observation displays mendels' theory with what will be produced by the two types in this case which would be a yellow pea and a green pea.
Mendel
A photo of mendel observing a plant and the way it may tie into genetics.
Experiment Results
After many of Mendel's observations he came to three important conclusions
- The inheritance of each trait is determined by "units" or "factors" (genes) that are passed on to descendents unchanged
- An individual inherits one such unit from each parent for each trait
- A trait may not show up in an individual but can still be passed on to the next generation
The 2 Principles
- The principle of segregation
- The principle of independent assortment
Website: GeneticsRock.org
Location: In the Pea Fields
Facebook: facebook.com/GregorMendel
Twitter: @geneticsfinder_mendel