In a pedigree analysis $□ = O$ represents.

Consanguineous mating

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Affected parents

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Siblings

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Unrelated mating

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Solution

The correct option is A Consanguineous mating
Consanguineous matings are those between related individuals (those that share a common ancestor) and are indicated by double lines between pedigree symbols. The relatedness (r) of two individuals is the fraction of alleles they share at all loci.

So, the correct answer is 'Consanguineous mating'.

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