AIPMT 2005 Prelims

AIDS is caused by HIV that principally infects :

According to widely accepted "fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect?

A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of :

Why is vivipary an undesirable character for annual crop plants ?

Bacillus thuringiensis (Bt) strains have been used for designing novel :

The salivary gland chromosomes in the dipteran larvae, are useful in gene mapping because :

Which group of three of the following five statements (1-5) contain is all three correct statements regarding beri-beri ? A. A crippling disease prevalent among the native population of sub-Sahara Africa. B. A deficiency disease caused by lack of thiamine (vitamin B1). C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. D. Occurs in those countries where the staple diet is polished rice. E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.

Photosynthetic Active Radiation (PAR) has the following range of wavelengths :

Golden rice is a transgenic crop of the future with the following improved trait :

Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness.