In a dihybrid cross, \( \mathrm{F}_{2} \) phenotypic ratio is \( 13: 3 \). It is case of (A) com...

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In a dihybrid cross, \( \mathrm{F}_{2} \) phenotypic ratio is \( 13: 3 \). It is case of
(A) complementary genes
(B) epistatic genes
(C) multigenic inheritance
(D) incompletedominance
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