Question

in fruit flies, straight wings are dominant and curly wings are recessive. what will the generations look like? assume that mendels method of crossing two true - breeding parents with opposite traits is followed. check all that apply. the p generation has all straight wings. the p generation has straight wings and curly wings. the f1 generation has all straight wings. the f1 generation has all curly wings. the f1 generation has straight wings and curly wings. the f2 generation has all straight wings. the f2 generation has straight wings and curly wings.

Explanation:

When crossing two true - breeding parents with opposite traits (one with straight wings, genotype SS and one with curly wings, genotype ss) in the P generation, the P generation has straight - winged and curly - winged individuals. The F1 generation will all be heterozygous (Ss) and show the dominant trait (straight wings) because the dominant allele masks the recessive one. When the F1 generation self - crosses (Ss x Ss), the F2 generation will have a phenotypic ratio of 3 straight wings (SS or Ss) : 1 curly wing (ss), so it has both straight and curly wings.

Answer:

B. The P generation has straight wings and curly wings.
C. The F1 generation has all straight wings.
F. The F2 generation has straight wings and curly wings.