Question

question 5 in mendels pea - plant experiment, which of the following statements correctly describes the relationships between the parental generation (p), the first filial generation (f1), and second filial generation (f2)? select all that apply. a the p generation consists of the first generation of offspring produced by the cross of two purebred parents. b the f2 generation is produced by crossing two f1 generation plants. c the f1 generation results from the self - fertilization of the p generation. d the f1 generation is always heterozygous for the traits studied, while the f2 generation can be either homozygous or heterozygous. 2 points

Explanation:

In Mendel's pea - plant experiments, the P generation consists of purebred parents. Crossing two purebred parents gives the F1 generation. Self - fertilization of the F1 generation produces the F2 generation. The F1 generation is heterozygous for the traits studied, and the F2 generation can be either homozygous or heterozygous.

• Option A: The P generation is the parental generation of purebred parents that produce the first generation of offspring (F1), so this is correct.
• Option B: Crossing two F1 generation plants produces the F2 generation, so this is correct.
• Option C: The F1 generation results from the cross of the P generation, not self - fertilization of the P generation, so this is incorrect.
• Option D: The F1 generation is always heterozygous for the traits studied when purebred parents with contrasting traits are crossed, and the F2 generation can be homozygous or heterozygous, so this is correct.

Answer:

A. The P generation consists of the first generation of offspring produced by the cross of two purebred parents
B. The F2 generation is produced by crossing two F1 generation plants
D. The F1 generation is always heterozygous for the traits studied, while the F2 generation can be either homozygous or heterozygous