Exercise: Disorders

Questions for: Disorders

Which of the following sets belongs to a distinct class or category?
A:
Ribose, sucrose, glucose, fructose
B:
Sterols, waxes, fatty acids, amino acids.
C:
Oils, sterols, waxes, fats
D:
Nucleotide, nucleoside, nucleus, DNA
Answer: B
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A deficiency of the enzyme Hypoxanthine Guanine phosphoribosyl transferase (HGPRT) may cause
A:
Gaucher's disease
B:
Ehlers-Danlos syndrome
C:
Lesch- Nyhan syndrome
D:
Kleinefelter's syndrome
Answer: C
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What is the defective enzyme in the glycogen storage Von Gierke's disease?
A:
Phosphorylase
B:
Phosphofructokinase
C:
Glucose-6-phosphatase
D:
None of the above
Answer: C
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Methotrexate is toxic to human cells because it inhibits
A:
formation of CTP from UTP
B:
reduction of H2 folate to H4 folate
C:
synthesis of PRPP
D:
none of the above
Answer: B
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During sickle cell anemia which of the following takes place?
A:
Glutamine change to valine
B:
Valine change to glutamine
C:
Aspartic acid change to glutamic acid
D:
Glutamic acid change to aspartic acid
Answer: A
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