Phenylketonuria is a genetic disorder due to a defect in metabolism of the following.

  • A

    Polysaccharides

  • B

    Fatty acids

  • C

    Vitamins

  • D

    Amino acids

Similar Questions

Study the given pedigree chart and select the correct option of the given question.

$(1)$ Is the trait recessive of dominant ?

$(2)$ is the trait sex linked or autosomal ?

Given below is a highly simplified representation of the human sex chromosomes from a karyotype.

The genes $a$ and $b$ could be of

  • [AIIMS 2006]

A woman with two genes for haemophillia and one gene for colourblindness on one of the $X$ chromosomes marries a normal man. How will the progeny be

  • [AIPMT 1998]

Which is correct for inheritance of autosome linked recessive gene?

Sickle cell anaemia is due to

  • [AIPMT 1990]