Stirred tank bioreactors have been designed for
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(a) addition of preservatives to the product (b) purification of the product (c) ensuring anaerobic conditions in the culture vessel (d) availability of oxygen throughout […]
dB is a standard abbreviation used for the quantitative expression of
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(a) the density of bacteria in a medium (b) a particular pollutant (c) the dominant Bacillus in a culture (d) a […]
If for some reason goblet cells are non functional, this will adversely affect:
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(a) production of somatostatin (b) secretion of sebum from the sebaceous glands (c) maturation of sperms (d) smooth movement of […]
Which one of the following pairs is incorrectly matched?
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(a) Glucagon – Beta cells (source) (b) Somatostatin – Delta cells (source) (c) Corpus luteum – Relaxin (source) (d) Insulin – Diabetes mellitus […]
Which two of the following changes (a-d) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more)? (i) Increase in red blood cell size (ii) Increase in […]
What is true about RBC s in humans?
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(a) They carry about 20-25 per cent of CO₂ (b) They transport 99.5 per cent of O₂ (c) They transport about 80 per cent oxygen […]
ABO blood groups in humans are controlled by the gene I. It has three alleles – Iᴬ Iᴮ and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can […]
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional. what will be the immediate effect?
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(a) The flow of blood into the […]
Restriction endonucleases are enzymes which
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(a) make cuts at specific positions within the DNA molecule (b) recognize a specific nucleotide sequence for binding of DNA ligase (c) restrict the action of the […]
Select the correct statement from the following?
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(a) Biogas is produced by the activity of aerobic bacteria on animal waste (b) Methanobacterium is an aerobic bacterium found in rumen of cattle (c) […]
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