Question

Part C Having correctly established the F2 ratio in Part B, now predict the F2 phenotypic ratio of a "dihybrid" cross involving two independently assorting genes, A and W, for this cross. WWWWAAAA x wwwwaaaa The F2 ratio would be: ____ dominant W and dominant A individuals : ____ dominant W and recessive a individuals : ____ recessive w and dominant A individuals : ____ recessive w and recessive a individuals Enter your answer as four numbers separated by colons (example: 9:3:3:1).

Answer 1

The F2 ratio would be: 1:0:0:0 dominant W and dominant A individuals : 1:1:0:0 dominant W and recessive a individuals : 1:1:0:0 recessive w and dominant A individuals : 1:1:0:0 recessive w and recessive a individuals

Step-by-step explanation:

All the progeny resulting from this cross will be of an identical genotype (WWwwAAaa) since the parent genotype is homozygous dominant being crossed with homozygous recessive. The phenotypic ratio in this case is 1:0:0:0, indicating that all offspring express the dominant trait and are carriers of the recessive trait.