In a dihybrid cross white eyed, yellow bodied female Drosophila crossed with red eyed, brown bodied male Drosophila produced in F2 generation 1.3 percent recombinants and 98.7 percent progeny with parental type combinations. This observation of Morgan deviated from the Mendelian F2 phenotypic dihybrid ratio. Explain, giving reasons, Morgan's observations.