Gregor Mendel

The Father of Modern Genetics


Gregor Mendel is the father of modern genetics. He researched most of what we know about genetics and heredity.

Early Years


  • Could not pass test
  • Family had little money


  • Made it to college
  • Attended regular church services

Experimental Design

Crossed a pure yellow pea plant with a pure green one.

  • New species came from this
  • All pea plants in first generation came out yellow
  • Second generation had a few green plants


  • Yellow is dominant
  • Green is recessive
  • Green only shows up in second generation


It did not attract much attention, because most scientist thought that they already new about this stuff.

Foundation of Genetics

He laid a foundation by being the first person to study this kind of topic. He learned so much about it that people still look at hi data.


Dominant- Gene that will overpower another gene

Example- Brown eyes are dominant.

Recessive- gene that gets overpowered by another gene

Example- Blue eyes are recessive

Codominant- Gene that is neither dominant or recessive

Example- Chickens that are black and white have codominant genes.

OMG!!!! This video is pretty neat!!!!

How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz