Answer:
The dominant yellow trait...
Explanation:
when cross between two homozygous traits take place then according to Mendel's law of segregation and law of independent assortment half of the resulting traits in the F1 progeny will be hetrozygous. In your case the yellow is a dominant character and due to no signs of co-dominance the yellow expresses itself as dominance and satisfies the both of the Mendel laws.