51, The genetic code that directs protein synthesis in human is found in :

(A)
(0)
(9)
(0)

0 17011೧81113127 ೧೫815175, 01 not in unicellular ones
No other kind of organism

All animals, but not in plants

Virtually all organism

52. What would be the consequence of defective ADH receptors 2

(ಗಿ)
68

Diabetes mellitus (8) Dehydration
Seasonal affective disorders (2) None of the above

53. Which of the following is true ?

(^)
(ಛಿ)

TgM fixes complement (8) 1gG does not cross placenta
18۸ binds mast cells (D) IgE binds phagacytes

54. Why can smooth muscle cells remain contracted for longer than striated muscle celis ?

(ಗಿ)
(0)
(9)
(0)

They lack Z disc

They store more calcium jons than striated muscle cells

They are not multinucleated cells

Their contraction relies on phosphorylation of myosin instead of iron fluxes

55. The inner mitochondrial membrane is rich in which of the following phospholipids ?

(ക)
(ಲ)

Cardiolipin (8) Lecithin
Cephalin (D) None of the above

56. The reason for the absence of testosterone in circulation in mammalian females is :

(^)
(४)
(ಲಿ)
(ಐ)

Testosterone is not produced by the ovary
Testosterone is fully converted to estradiol
Testosterone produced is immediately catabolised
The entire testosterone produced get excreted

57. ಗ carbon atom of urea is derived त

(ಗ)
(0)

Glycine (0) Methionine
Methylene tetrahydrofolate (D) Bicarbonate

58. In an individual at rest, who has fasted for 12 hours, which of the following occurs 7

(A)
(B)
(೧)
D)

Gluconeogenesis is the major process by which blood glucose is maintained
Glycogen synthase ‏كذ‎ activated in liver

Adenylate cyclase is inactivated in ۴۲

Phosphorylase, pyruvate kinase and glycogen synthase are phospharylated in liver

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