Question

Describe the cross between a homozygous tall round seeded pea plant and a dwarf wrinkled seeded pea plant, what will be types of propency in the `F_(2)` generation of this cross and in what proportion will it be ?
Name and state the law which is explained by this example.

Answer 1

If we represent the gene for tall habit of pea plant with T and round seed by R, then the genotype of tall round seeded pea plant will be TTRR. Similarly the genotype of dwarf wrinkled seeded pea plant will the ttrr.


`F_(2)` progeny : Tall round = 9
Tall wrinkled = 3
Dwarf round = 3
Dwarf wrinkled = 1
Phenotypic ratio = 9: 3: 3: 1
Name of law = Law of independent assortment
Statement of law = The law of independent assortment
States that when two parents differing from each other in two or more inheritance of one pair of characters is independent of the other pair of characters.