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Question : Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of phenotypic features in F_1, generation for a dihybrid cross?

Answer»

Solution :If the TWO loci in parents are completely linked, there would be no segregation.
=The `F_1` generation will EXHIBIT parental characters only.
= But, if the two loci are incompletely linked then segregation would occur PARTLY and the `F_1` generation will exhibit both parental and recombinant characteristics, but the recombinant will be in a very small proportion.

= Only two types of GAMETES will be produced from each parent as the two loci are linked.


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