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Find out phenotypic ratio of complimentary gene interaction by showing a cross between two complimentary gene |
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Answer» Answer: Explanation: In complementary gene interaction, when both dominant ALLELES are PRESENT together, they PRODUCE a new phenotype. In this type, aaBB, aaBb, Aabb and aabb genotypes produce similar type of phenotype. The genotype AaBB, AABB, AaBb and AABb produce one type of phenotype. Hence, when a cross is made between AaBb and aaBB, the gametes produced will be AB, ab, Ab and aB x aB. In this the offsprings will have genotype, AaBB, aaBb, AaBb and aaBB and 2 types of phenotypes will be observed. Thus, the CORRECT answer is '2 phenotypes, 4 genotypes.' |
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