Principle of Inheritance and VariationHard
Question
Test cross involves
Options
A.crossing between two eith recessive teait
B.crossing between two F1 hybrids
C.crossing the F1 hybrids with a doubl recessive genotyp
D.crossing between two genotyp with dominant trait
Solution
The test cross involves the crossing of F1 hybrid with a double recessive genotypic parent. By test cross, the heterozygosit and homozygosit of the organism can be tested.
Thus, the offspring will be 100% dominant if the individual which crossedd with recessive parent ie, (tt) was heterozygous dominant and ratio will be 50% dominant and 50% recessive if the individual was heterozygous dominant. In dihybrid test cross, ratio will be 1:1:1:1.
Thus, the offspring will be 100% dominant if the individual which crossedd with recessive parent ie, (tt) was heterozygous dominant and ratio will be 50% dominant and 50% recessive if the individual was heterozygous dominant. In dihybrid test cross, ratio will be 1:1:1:1.
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