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Last Updated On [03-11-2023]

Blackening of urine, when exposed to air is a metabolic disorder in human beings. This is due to

a)

Phenylalanine

b)

Tyrosine

c)

Valine replacing glutamine

d)

Homogentisic acid


Question ID - 4507 :-

Blackening of urine, when exposed to air is a metabolic disorder in human beings. This is due to

a)

Phenylalanine

b)

Tyrosine

c)

Valine replacing glutamine

d)

Homogentisic acid

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Alkaptonuria is a genetic disease. It is a metabolic disorder, in which patient excrete large amount of homogentisic acid in urine. Such urine turns black, when exposed to air.



Next Question :

Many freshwater animals cannot live for long in sea water and  mainly because of the

a)

Change in N levels

b)

Change in the levels of thermal tolerance

c)

Variations in light intensity

d)

Osmotic problems


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