Goitre can occur as a consequence of all the following except

• iodine deficiency

• pituitary adenoma

• Grave's disease

• excessive intake of exogenous thyroxin

Which of the following does not act as a neurotransmitter

• Acetylcholine

• Epinephrine

• Glutamic acid

• Tyrosine

The genetic deficiency of ADH-receptor leads to

• diabetes mellitus

• glycosuria

• diabetes insipidus

• nephrogenic diabetes

Generally artificial pace-maker consists of one battery made up of

• nickel

• dry cadmium

• photo sensitive material

• lethium

Choose the minor carp from the following

• Cyprinus carpio

• Anguilla sp

• Labeo bata

• cetanophyrngodon idella

Cellular totipotency was first demonstrated by

• F C Steward

• Robert Hooke

• T Schwann

• A v Leeuwenhoek

Graham's law is correlated with

• diffusion

• osmoregulation

• osmosis

• absorption

The generation of excitation-contraction coupling involves all the following events except

• generation of end-plate potential

• release of calcium from troponin

• formation of cross-linkages between actin and myosin

• hydrolysis of ATP to ADP

Pernicious anaemia results due to deficiency of

• vitamin-B₁

• vitamin-A

• vitamin-B₁₂

• iron

Which of the following substances yield less than 4 kcal/mol when its phosphate bond is hydrolysed

• Creatine phosphate

• ADP

• Glucose-6-phosphate

• ATP