Why, in a test cross, did Mendel cross a...

Why, in a test cross, did Mendel cross a tall pea plant with a dwarf pea plant only?

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To know the genotype whether it is homozygous or heterozygous for the dominant trait.

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Write the possible genotypes Mendal got when he crossed F_1 tall pea plants with a dwarf pea plants

When Mendel corrosed a Tall plant with dwarf plant, no medium height plants were obtained in F1 generation. Explain.

In one of his experiments with pea plants Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation, F_(1) only tall plants appeared. (i) What happens to the traits of the dwarf plants in this case? (ii) When the F_(1) generation plants were self-fertilised, he observed that in the plants of second generation, F_(2) both tall plants and dwarf plants were present. Why it happened? Explain briefly.

In a cross between a tall pea plant (TT) and a short pea plant (tt), what will be the characteristics shown by the F_(1) generation?

A cross was carricd out between a pure bred tall pea plant and a pure bred dwarf pea plant and F_(1) progeny was obtained. Later, the F_(1) progeny was selfed to obtain F_(2) progeny. Answer the following questions : (i) What is the phenotype of the F, progeny and why? (ii) Give the phenotypic ratio of the F_(2) progeny. (iii) Why is the F_(2) progeny different from the F_(1) progeny?

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