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An individual affected by phenylketonuri...

An individual affected by phenylketonuria lacks an enzyme that converts the amino acid `"_____"` into `"_____"`

A

tyrosine , phenylalanine

B

phenylalanine , tyrosine

C

homogentisicacid , phenylalanine

D

homogentisic . acid , tyrosine

Text Solution

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The correct Answer is:
B
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State True of False (i) Hetrozygous female for baemophilia may transmit the disease to sons (ii) Affected individuals with phenylketonuna lack an enzyme that converts the amino acid phenylalanine into phenylpyruvic acid (iii) Klinefelter's syndrome is caused due to the presence of an additional copy of X-chromosome resulting into a karyotype of 47//XXX (iv) Failure of segregation of homologous pair of chromosomes during cell division cyclic results in Turner's syndrome.

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Knowledge Check

  • A person affected with phenylketonuria lacks an enzyme that converts the amino acid phenylalanine into :

    A
    valins
    B
    proline
    C
    tyrosine
    D
    histidine

  • A. The graphical representation to calculate the probability of all possible genotypes of offsprings in a genetic cross was developed by Gregor Mendel. B. Failure of segregation of chromatids during cell division results in aneuploidy. C. Additional copy of 'X' chromosome in males results in Klinefelter's syndrome. D. Closely located genes in a chromosome always assort independently resulting in recombinants. E. According to Mendel, recessive character never blend in heterozygous condition. F. Failure of cytokinesis after DNA replication results in polyploidy. G. A person affected with phenylketonuria, lacks an enzyme that converts the amino acid phenylalanine into tyrosine, How many wrong statements are given in above statements.

    A
    Four
    B
    Three
    C
    Two
    D
    One

  • Individuals suffering from phenylketonuria lack an enzyme required for the conversion of

    A
    tyrosine to phenylalanine
    B
    phenylalanine to tyrosine
    C
    phenylalanine to phenylpyruvic acid
    D
    phenylpyruvic acid to phenylalanine

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