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Which one of the following is the correct statement regarding the particular psychotropic drug specified

  • Hashish cause alter thought perceptions and hallucinations

  • Opium stimulates nervous system and cause hallucinations

  • Morphine leds to delusions and disturbed emotions

  • Morphine leds to delusions and disturbed emotions


A.

Hashish cause alter thought perceptions and hallucinations

Charas is the dried resinous extract from the flowering tops and leaves of Cannabis Sativa. In some countries, it is called hashish. It is an hallucinogen, which alters a person's thought, feeling and perceptions.

Psychotropic drugs (mood altering drugs) act on the brain and alter the behaviour, consciousness and power of perception. Barbiturates (derivative of barbituric acid) are general depressants for all excitable cells but the CNS is most sensitive to these drugs.

Opium is obtained from unripe seed pots of poppy plant (Papaver somniferum). Optimum has an analgesic (pain killing) effect and may also reduce anxiety and tension and lowers the blood pressure and breathing rate. 

Morphine ( a dream inducing derivative of opium) dream-inducing properties.

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The letter T in T-lymphocyte refer to 

  • thyroid

  • thalamus

  • tonsil

  • tonsil


D.

tonsil

Tonsil is a mass of lymphoid tissue, several of which are situated at the back of the mouth and throat in higher vertebrates.


The thymus is haemopoietic as well as an endocrine gland.The thymus is the seedbed of thymic lymphocytes (T-lymphocytes). Certain stem cells, originating in yolk sac and liver in the early embryo, migrate into the thymus and proliferate to form a large number of lymphocytes.

The thyroid is an endocrine gland.

Thalamus is the part forebrain in vertebrate lies above the hypothalamus.

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To which type of barriers under innate immunity, do the saliva in the mouth and the tears the eyes, belong?

  • Cytokine barriers

  • cellular barriers

  • Physiological barriers

  • Physiological barriers


C.

Physiological barriers

Innate immunity is the resistance to infection, which an individual possess by virtue of his/her genetic and constitutional makeup. Thus, it comprises all those defence elements with which an individual is born and , which are always available to protect a living body. Physiological barriers like body temperature, pH of the body fluid, and various body secretions (saliva, tears) prevent the growth of many disease causing micro-organisms. 
Skin is the physical barrier of the body. Its outer tough layer the stratum corneum pervents the entry of bacteria and viruses.

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A transgenic food crop, which may help in solving the problem of night blindness in developing countries is

  • Flavr savr tomatoes

  • Starlink maize

  • Bt soybean

  • Bt soybean


D.

Bt soybean

Vitamin -A deficiency causes night blindness among children. Vitamin - A deficiency often occurs where rice is the staple food since rice grain does not contain Beta carotene. Three transgenic providing phytoene synthase, phytoene desaturase, zeta-carotene desaturase and lycopene cyclase activities were transferred into rice by Agrobacterium mediated transformation. The resulting transgenic rice popularly called golden rice contains good quantities of Beta-carotene.

Flavr savr is genetically modified tomato, which remains fresh and retains their flavour much longer than normal tomato due to blocking of synthesis of fruit softening enzyme polygalacturonase.

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Consider the following four measure (A-D) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common
A) spray with Bordeaux mixture
B) control of the insect vector of the disease pathogen
C) Use of only disease-free seeds
D) Use of varieties resistant to the disease
Which two fo the above measures can control the disease?

  • B and C

  • A and B

  • C and D

  • C and D


C.

C and D

Bacterial blight of chickpea (Cicer arietinum) is caused by bacterium Xanthomonas campestris. They ejected tissue collapse and are digested by bacteria. The rapid spread of bacterial infection occurs through vascular strand. The stems and leaves of infected plant give blighted or burnt up appearance. Control measures include rogueing; 3- year crop rotation, disease free seeds, a spray of copper fungicides and antibiotics besides showing disease resistant varieties. 

Bordeaux mixture is a most common fungicide, it was first discovered by Millardet in 1882 at the university of Bordeaux France to control downy mildew of grapes. It is prepared by mixing copper sulphate, lime and water in the ration of 4: 4: 50.

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