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4.Principles of Inheritance and Variation
medium
$BB =$ for black colour alleles
$bb =$ for brown colour alleles
Offspring of a cross between a black mouse and brown mouse allowed to interbreed than find out the percentage of black coat in them
Solution
Black colour is dominant over the recessive so by cross it is easily infered that $75\, \%$ of the offspring are black and $25\, \%$ are brown
Std 12
Biology
