Correct Answer:- Option-A
Question58:-If mean is 25 and standard deviation is 5, then coefficient of variation is
A:-5%
B:-20%
C:-25%
D:-75%
Correct Answer:- Option-B
Question59:-Which of the following 15 the best test based on the ROC curve?
A:-Area under the curve is more than 0.9
B:-Area under the curve is 0.5
C:-Area under the curve is less than 0.1
D:-Area under the curve is less than 0.01
Correct Answer:- Option-A
Question60:-Which one of the following statements is NOT TRUE regarding telomerase?
A:-It's activity is increased in cancer
B:-Loss of telomerase activity leads to aging
C:-lt is a ribozyme
D:-It has reverse transcriptase activity
Correct Answer:- Option-C
Question61:-Which one of the following diseases results from defective nucleotide excision repair mechanism?
A:-Xeroderma Pigmentosum
B:-Hereditary Polyposis Colon Cancer
C:-Fanconi's Anemia
D:-Bloom's Syndrome
Correct Answer:- Option-A
Question62:-Which one of the following is NOT true regarding IgM7
A:-Do not fix complement
B:-Antigen receptor is on the surface of B cells
C:-Do not cross the placenta
D:-Involved in primary response
Correct Answer:- Option-A
Question63:-Which amino acid is relatively absent in alpha helices?
A:-Glycine
B:-Valine
C:-Tryptophan
D:-Arginine
Correct Answer:- Option-A
Question64:-Which one of the following diseases is due to defective collagen synthesis?
A:-Leukocyte adhesion deficiency Il
B:-Ehlers-Danlos syndrome
C:-Paroxysmal noctumnal hemoglobinuria
D:-l-cell disease
Correct Answer:- Option-B
Question65:-Which of the following vitamins provide the cofactor for transketolase reaction?
A:-Vitamin *"B_6""

D:-Riboflavin
Correct Answer:- Option-C
Question66:-Which one of the following histone amino acid is typically acetylated?
A:-Lysine
B:-Arginine
C:-Histidine
D:-Leucine
Correct Answer:- Option-A
Question67:-Vitamin C is not synthesized in humans due to the deficiency വ്‌
A:-L-Xylulose dehydrogenase
B:-L-Gulonolactone oxidase
C:-L-Gulonate oxidase