When two genetic loci produce identical pheno | vedclass

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(D) The $cis-trans$ test (or complementation test) is used to determine if two mutations are in the same gene or different genes.If two mutations are

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Different genes

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(D) The $cis-trans$ test (or complementation test) is used to determine if two mutations are in the same gene or different genes.If two mutations are in the same gene,they will show a mutant phenotype in the $trans$ position (where the mutations are on different chromosomes) because there is no functional copy of the gene.However,if the mutations are in different genes,they will show a wild-type (normal) phenotype in the $trans$ position because the functional copies of the genes complement each other.If two genetic loci produce identical phenotypes in both $cis$ and $trans$ positions,it indicates that they are not functionally related in a way that suggests they are alleles of the same gene or interacting genes in a complementation sense; rather,they are considered to be different genes that do not exhibit functional interaction or complementation.

List-$I$ (Type of Inheritance)	List-$II$ (Example)
$A$. Incomplete dominance	$I$. Blood groups in human
$B$. Co-dominance	$II$. Flower colour in Antirrhinum
$C$. Pleiotropy	$III$. Skin colour in human
$D$. Polygenic inheritance	$IV$. Phenylketonuria

When two genetic loci produce identical phenotypes in $cis$ as well as in $trans$ position,they are considered to be

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