Which one of the following symbols and its re | vedclass

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(A) The correct answer is $(A)$. In human pedigree analysis,standard symbols are used to represent family relationships and genetic traits:$1$. $A$ sq

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(A) The correct answer is $(A)$. In human pedigree analysis,standard symbols are used to represent family relationships and genetic traits:$1$. $A$ square represents a male,and a circle represents a female.$2$. $A$ horizontal line connecting a square and a circle represents mating.$3$. $A$ double horizontal line between a square and a circle represents mating between relatives (consanguineous mating).$4$. An open (unshaded) symbol represents an unaffected individual.$5$. $A$ solid (shaded) symbol represents an affected individual.Based on the provided options:- Option $(A)$ correctly shows a double horizontal line,which represents mating between relatives.- Option $(B)$ shows a circle,which represents a female,not a male.- Option $(C)$ shows a square,which represents a male,not a female.- Option $(D)$ shows a diamond,which represents an individual of unspecified sex,not an affected male.

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

Which one of the following symbols and its representation,used in human pedigree analysis,is correct?

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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

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