500
Sepia, winged: 4
red, winged: 4
sepia, wingless: 4
red, wingless: 4
Sepia eyes are dominant over red eyes and wings are dominant over wingless. Make a dihybrid cross for a cross between a heterozygous sepia eyed, winged fruit fly and a homozygous red eyed, wingless fruit fly. What is their phenotypic ratio and possible physical traits?