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Question

A cross is made between two animals of genotypes AaBb x AaBb, where loci A and loci B assort independently. The progeny of this dihybrid cross was then allowed to self-cross. The proportion of the progeny that showed segregation for loci A (i.e., produce A- and aa progeny) in % will be ____ (in integer). (NAT)

Explanation

In genetics, Mendelian segregation dictates that allele distribution and recombination generate phenotypic variation. Therefore Option NAT is correct as it follows segregation and linkage principles, supported by mechanistic studies and conserved across related systems.

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