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(B) The correct matches are as follows:$1$. $i$. Roan cattle: This is an example of Co-dominance, where both alleles for coat color (red and white) ar

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$i-b, ii-c, iii-d, iv-a$

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(B) The correct matches are as follows:$1$. $i$. Roan cattle: This is an example of Co-dominance, where both alleles for coat color (red and white) are expressed equally in the heterozygote.$2$. $ii$. Pink flowered $Mirabilis \, jalapa$ plant: This is an example of Incomplete dominance, where the phenotype of the heterozygote is intermediate between the two homozygous parents.$3$. $iii$. Sickle cell anaemia: This is an example of Pleiotropism, where a single gene mutation affects multiple phenotypic traits.$4$. $iv$. Wings in $Drosophila$: This is an example of Multiple allelism (e.g., vestigial wing alleles).Therefore, the correct matching is $i-b, ii-c, iii-d, iv-a$.

Column-$I$ (Traits)	Column-$II$ (Type of inheritance)
$i$. Roan cattle	$a$. Multiple allelism
$ii$. Pink flowered $Mirabilis \, jalapa$ plant	$b$. Co-dominance
$iii$. Sickle cell anaemia	$c$. Incomplete dominance
$iv$. Wings in $Drosophila$	$d$. Pleiotropism

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