 a pure dominant red flowered plant is crossed with a pure recessive white flowered plant & if pure dominant organism is crossed a pure recessive organism , then the offspring will have a 100% probability of being heterozygous dominant -> the grandfather of the yellow flowered vegetable and yolk flowered vegetable will 100% be heterozygous submissive the offspring of the red flowered plant and white flowered plant will 100% be heterozygous dominant