Write down the difference between the following pair as indicated within the brackets:
Monohybrid and Dihybrid cross (Phenotypic ratio)
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Solution
A Monohybrid cross is a cross between two parents having a pair of contrasting alleles of a single character for example a cross between a tall and a dwarf parent.
A dihybrid cross is a breeding experiment between two organisms that are identical hybrids for two traits.
Monohybrid cross
Dihybrid cross
The phenotypic ratio of a monohybrid cross is 3:1
The phenotypic ratio of a monohybrid cross is 9:3:3:1