The inheritance of height by designating which genotypes yield tall and which yield dwarf will be in this instance, the complementary gene interaction results in a 9:7 phenotypic ratio.
AABB X aabb must have been the original cross.
According to the interaction, at least one A and one B are required for the tall phenotype (there are two gene pairs implicated).
Genotypes:
A B_ 9/16 in tall
3/16 dwarf A bb
dwarf aaB_ 3/16
1/16th aabb dwarf
The genotypes of pure breeding should include
AAbb, aaBB, aabb, AABB, and so on.
Ratio = 4/16.
An organism's entire genetic composition is known as its genotype. The alleles or variants that a person possesses in a certain gene or genetic area are also referred to as a person's "genotype."
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