Pick out the correct statements.

$I.$ Haemophilia is a sex-linked recessive disease

$II.$ Down's syndrome is due to aneuploidy

$III.$ Phenylketonuria is an autosomal dominant gene disorder

$IV.$ Phenylketonuria is an autosomal recessive gene disorder

$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder

  • A

    $I, III$ and $V$ are correct

  • B

    $I$ and $III$ are correct

  • C

    $II$ and $V$ are correct

  • D

    $I, II$ and $IV$ are correct

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