Mendel's Conclusions Organisms inherit traits in pairs - one trait from each parent.
Some traits are dominant and some traits are recessive.
Dominant traits express themselves when the dominant gene is present, and the recessive traits stay hidden. Recessive traits only express themselves when the dominant gene is absent. Return to the 7th Grade Integrated Science Sci-ber Text Page . Visit the Utah State 7th Grade Integrated Science Core Curriculum Page . USOE Home Page Copyright by the Utah State Office of Education.