Disorders(Biotechnology ) Questions and Answers

Question 1.  
If the RBC of human were kept in 0.9% NaCl solution, what sort of change will occur to RBC?
  1.    Cell will Burst
  2.    Cell will shrink
  3.    No change to RBC
  4.    RBC will destroy
Explanation:-
Answer: Option C. -> No change to RBC
Question 2.  Which of the modification in hemoglobin is the cause of sickle cell anemia?
  1.    A mutation in the beta chain
  2.    A deletion in the beta chain
  3.    Replacement of the B chain by D chain
  4.    None of the above
Explanation:-
Answer: Option A. -> A mutation in the beta chain
Question 3.  Klinefelter syndrome is a manifestation of which chromosome aneuploidy?
  1.    XXX
  2.    XYY
  3.    XXY
  4.    None of these
Explanation:-
Answer: Option C. -> XXY
Question 4.  The disorder in which of the following may cause "Ehlers-Danlos Syndrome"?
  1.    Dlashin protein
  2.    Collagen protein
  3.    Fibrin protein
  4.    Globulin protein
Explanation:-
Answer: Option B. -> Collagen protein
Question 5.  Which of the protein is involved in Alzheimer's disease?
  1.    A4
  2.    Amylin
  3.    Fibrin
  4.    Alzhemin
Explanation:-
Answer: Option A. -> A4
Question 6.  Methotrexate is toxic to human cells because it inhibits
  1.    formation of CTP from UTP
  2.    reduction of H2 folate to H4 folate
  3.    synthesis of PRPP
  4.    none of the above
Explanation:-
Answer: Option B. -> reduction of H2 folate to H4 folate
Question 7.  During sickle cell anemia which of the following takes place?
  1.    Glutamine change to valine
  2.    Valine change to glutamine
  3.    Aspartic acid change to glutamic acid
  4.    Glutamic acid change to aspartic acid
Explanation:-
Answer: Option A. -> Glutamine change to valine
Question 8.  A deficiency of the enzyme Hypoxanthine Guanine phosphoribosyl transferase (HGPRT) may cause
  1.    Gaucher's disease
  2.    Ehlers-Danlos syndrome
  3.    Lesch- Nyhan syndrome
  4.    Kleinefelter's syndrome
Explanation:-
Answer: Option C. -> Lesch- Nyhan syndrome
Question 9.  What is the defective enzyme in the glycogen storage Von Gierke's disease?
  1.    Phosphorylase
  2.    Phosphofructokinase
  3.    Glucose-6-phosphatase
  4.    None of the above
Explanation:-
Answer: Option C. -> Glucose-6-phosphatase
Question 10. . Which of the following sets belongs to a distinct class or category?
  1.    Ribose, sucrose, glucose, fructose
  2.    Sterols, waxes, fatty acids, amino acids.
  3.    Oils, sterols, waxes, fats
  4.    Nucleotide, nucleoside, nucleus, DNA
Explanation:-
Answer: Option B. -> Sterols, waxes, fatty acids, amino acids.
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