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Study the pedigree chart given below.

what does it show?

  • Inheritance of a sex-linked inborn error of metabolism like phenylketonuria

  • Inheritance of a condition like phenylketonuria as an autosomal recessive trait

  • The pedigree chart is wrong as this is not possible

  • The pedigree chart is wrong as this is not possible


D.

The pedigree chart is wrong as this is not possible

In the given pedigree chart, squares are representing males and circles females. In an F1 generation, 1-male and 1- female are diseased and in next generation the only male is diseased. This shows the inheritance of a recessive sex-linked disease.

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Removal of introns and joining the exons in a defined order in transcription unit is called

  • splicing

  • tailing

  • transformation

  • transformation


Whose experiments cracked the DNA  and discovered unequivocally that is genetic code is a triplet?

  • Nirenberg and Mathaei

  • Hershey and Chase

  • Morgan and Sturtevant

  • Morgan and Sturtevant


select the incorrect statement from the following 

  • Linkage is an exception to the principle of independent assortment in heredity

  • galactosemia is an inborn error of metabolism

  • small population size results in a random genetic drift in a population

  • small population size results in a random genetic drift in a population


Which one of the following is the correct matching of three items and their grouping category?

  • Items

    Group

    Malleus, incus, cochlea

    Ear ossicles

  • Items

    Group

    IIium, ischium, pubis

    Coxal bones of pelvic girdle

  • Items

    Group

    Actin, myosin,

    Rhodopsin

    Muscle proteins

  • Items

    Group

    Actin, myosin,

    Rhodopsin

    Muscle proteins


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