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Ascaris is characterised by 

  • the absence of true coelom but the presence of metamerism

  • the presence of neither true coelom nor metamerism

  • the presence of true coelom but the absence of metamerism

  • the presence of true coelom but the absence of metamerism


B.

the presence of neither true coelom nor metamerism

Ascaris is an endoparasite of man. It inhabits the small intestine more frequently of children than of adults. the body is elongate, cylindrical and gradually tapering at both ends. There is no metameric segmentation. In Ascaris between the body wall and Visceral organs is a spacious fluid filled cavity. This cavity is not true coelom as it is not lined by coelomic epithelium, has no relation with reproductive and excretory organs and develops from blastocoel. This body cavity is referred pseudocoel.

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If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

  • Serum albumins

  • Serum globulins

  • Fibrinogen in the plasma

  • Fibrinogen in the plasma


B.

Serum globulins

Antibodies also called immunoglobulins constitute the gamma globulin part of blood proteins. These are secreted by activated B-cells or plasma cells.

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A person showing unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from

  • schizophrenia

  • borderline personality disorder (BPD)

  • mood disorders

  • mood disorders


A.

schizophrenia

Schizophrenia is any of a group of severe mental disorders that have in common, symptoms as hallucinations, delusions, blunted emotions, disordered thinking and a withdrawl from reality.

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The 'blue baby' syndrome results from

  • excess of chloride

  • methaemoglobin

  • excess of dissolved oxygen

  • excess of dissolved oxygen


B.

methaemoglobin

The disease 'blue baby syndrome' result from methaemoglobin. The main cause of this disease are the nitrate fertilizers on soil which enter the human body through water and converted to nitrites by microbial flora of intestine. The nitrites combine with haemoglobin to form methaemoglobin causing methaemoglobinaemia in adults and blue baby syndrome in newly borne babies or infants.

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Human insulin is being commericially produced from a transgenic species of 

  • Escherichia

  • Mycobacterium 

  • Rhizobium

  • Rhizobium


A.

Escherichia

In 1983 an American company Eli Lily produced the first genetically engineered insulin by first synthesizing two DNA sequences corresponding to A and B insulin chains. The two DNA sequences or genes were made to fuse wit plasmids of Escherichia coli and alter allowed to form insulin chains.

Rhizobium is a Gram-negative, aerobic, motile, non-spore forming symbiotic nitrogen-fixing bacterium. It is an acute bacterial infection of the lungs lymph and meninges. 

Saccharomyces cerevisiae is known as Baker's Yeast and Saccharomyces ellipsoids is wine yeast a these are used in baking and brewing industry respectively.

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