A mating is set up between two pure breeding strains of plants. One parent has long leaves and long shoots. The other parent has short leaves and stubby shoots. F₁ plants are collected, and all have long leaves and long shoots. F₁ plants are self-crossed, and 1,000 F₂ plants are phenotyped. The data is as follows:

Are the genes for leaf and shoot length segregating independently?
(A) Yes; the degrees of freedom are 3, and the calculated χ² value is small.
(B) No; the degrees of freedom are 3, and the calculated χ² value is large.
(C) Yes; the degree of freedom is 1, and the calculated χ² value is small.
(D) No; the degree of freedom is 1, and the calculated χ² value is large.

Transcribed Image Text:

Phenotype Long leaves, long shoots Long leaves, stubby shoots Short leaves, long shoots Short leaves, stubby shoots Total # of F2 382 109 112 397 1,000