A : Test cross is the tool for knowing linkag | vedclass

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(C) The Assertion is correct because a test cross (crossing an individual with a homozygous recessive parent) is used to determine the linkage between

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Assertion is correct,but Reason is incorrect.

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(C) The Assertion is correct because a test cross (crossing an individual with a homozygous recessive parent) is used to determine the linkage between genes. If genes are linked,the test cross ratio deviates from the expected Mendelian ratio.The Reason is incorrect because a monohybrid test cross (e.g.,$Tt 	imes tt$) results in a $1:1$ phenotypic ratio and a $1:1$ genotypic ratio. While it gives two phenotypes,it does not necessarily provide information about linkage between genes in the context of the assertion's claim. More importantly,the reason provided does not explain why a test cross is a tool for linkage.Therefore,the correct option is $C$.

Column – $I$	Column – $II$
$(1)$ Failure of cytokinesis	$(p)$ To study inheritance of particular traits
$(2)$ Trisomy of $21$	$(q)$ Polyploidy
$(3)$ Error of metabolism	$(r)$ Down's syndrome
$(4)$ Pedigree analysis	$(s)$ Phenylketonuria

$A$ : Test cross is the tool for knowing linkage between genes.
$R$ : Monohybrid test cross gives two phenotypes and two genotypes.

Similar Questions

Which of the following is incorrectly paired?

Match the following:

Column – $I$ Column – $II$

$(1)$ Failure of cytokinesis $(p)$ To study inheritance of particular traits

$(2)$ Trisomy of $21$ $(q)$ Polyploidy

$(3)$ Error of metabolism $(r)$ Down's syndrome

$(4)$ Pedigree analysis $(s)$ Phenylketonuria

$A$: Antlers in male deer are sex-influenced traits.
$R$: These are controlled by autosomal genes which are influenced by the sex of the bearer.

In $F_2-$generation, genotypic and phenotypic ratios are the same in the case of $-$

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$A$ : Test cross is the tool for knowing linkage between genes.$R$ : Monohybrid test cross gives two phenotypes and two genotypes.