Multiple Choice QuestionsCreosote is used to prevent:
rusts of wheat
dry rot of wood
loose smut of oats
brown rust of barley
Which of the following insecticide is obtained from the roots of Derris elliptica ?
Cinerin
Nicotine
Rotenone
Pyrethrum
Which of the following gland is often referred in relation with AIDS
Thyroid
Thymus
Adrenal
Pancreas
B.
Thymus
The thymus gland, which plays a key role in the maturation and functioning of the lymphoid system, is implicated in the acquired immune deficiency syndrome (AIDS). The observation that the thymic hormone, thymosin α1, is elevated in individuals at risk for AIDS (as opposed to being depressed in other immunodeficient states) has provided the first direct evidence that the thymus is malfunctioning early in the course of this deadly disease.
Which one of the following bacterium is used extensively as biopesticide?
Bacillus subtilis
Bacillus thuringiensis
Streptococcus lactis
Lactobacillus acidophilus
Increase of BOD in water leads to
increase in the dissolved O2 concentration
decrease in the dissolved O2 concentration
maintenance of dissolved O2 concentration at the same level
no effect on dissolved O2 concentration
Genetically engineered bacteria are being employed for production of
thyroxin
human insulin
cortisol
epinephrine
Which one of the following is biological insecticide?
Tiger beetle
Caterpillar
Silkmoth
Mazra poka
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