Question

How would a geneticist write the alleles to show that a tall pea plant as one allele for tall stems and one allele for short stems?

Answer 1

Answer:

Monohybrid cross is a cross between two plants that differ in one character pair. For example, height of pea plants. Mendel crossed tall and dwarf pea plants to study the inheritance of one gene.

Mendel crossed true breeding tall (TT) plant with true breeding dwarf (tt) plant. He removed anthers of one plant to avoid self pollination. This is female parent. He then collected pollen grains from the other plant (male parent) and transferred to female parent. The offsprings of F

1

generation were all tall (Tt) plants. This indicates that tall character is dominant over dwarf character. The F

1

generation when self pollinated produced gametes T and t in equal proportion. In F

2

generation, both tall and dwarf plants were produced in the ratio 3 (tall) : 1 (dwarf). The reappearance of dwarf plant indicates that alleles for tallness and dwarfness have segregated during gamete formation.

Explanation:

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