The given chart shows a pedigree analysis. Wh | vedclass

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(B) $1$. In the given pedigree,the parents are unaffected (unshaded),but they have affected (shaded) offspring of both sexes (a male and a female). $2

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Genetic condition like Phenylketonuria,which is an autosomal recessive trait.

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(B) $1$. In the given pedigree,the parents are unaffected (unshaded),but they have affected (shaded) offspring of both sexes (a male and a female). $2$. This pattern of inheritance,where unaffected parents produce affected offspring,is characteristic of an autosomal recessive trait. $3$. Phenylketonuria is a well-known example of an autosomal recessive disorder. $4$. Sex-linked recessive traits (like Haemophilia) typically show a different pattern,often affecting males more frequently and skipping generations in a specific way related to the $X$-chromosome. $5$. Therefore,the pedigree represents an autosomal recessive trait like Phenylketonuria.

The given chart shows a pedigree analysis. What does it represent?

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From the following pedigree chart of a family,one can make an analysis that:

Pick out the correct statements.
$(1)$ Haemophilia is a sex-linked recessive disease.
$(2)$ Down's syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.

What is pedigree analysis? Suggest how such an analysis can be useful.

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