A pumpkin plant with white disc-shaped fruits, crossed with a plant with yellow globular fruits, produces in F1 38 plants

A pumpkin plant with white disc-shaped fruits, crossed with a plant with yellow globular fruits, produces in F1 38 plants with white disc-shaped fruits, 13 with white globular fruits, 12 with yellow disc-shaped fruits and 5 with yellow globular fruits. Determine: 1) which features are dominant; 2) the formula for the genotype splitting of F1 offspring.

1) Dominant features – white color and disc-shaped fruit, recessive – yellow color and spherical shape of the fruit; 2) the formula for splitting F1 offspring by genotype – 1 (AABB): 2 (AABb): 1 (Aabb): 2 (AaBB): 4 (AaBb): 2 (Aabb): l (aaBB): 2 (aaBb): 1 (aabb).

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