Man of Genetics
With a green and yellow pea plant breed together the resulting seeds are all yellow but the next generation would then have some green seeds. There was 3:1 ration for all the physical things.
Dominant: Gene that will overpower another
ex:The yellow in the seeds was the dominant trait.
Recessive: Gene that gets covered up by a dominant gene
ex:The green in the seeds was the recessive trait.
CoDominant: Gene that is neither dominant nor recessive (both would show up)
ex: in the third generation the seeds were both yellow or green.