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infectious proteins are present in1gemini viruses2prions3viroids4satellite
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
the two gases making highest relative contribution to the greenhouse gases are1 co2 and ch42 ch4 and n2o3 cfc55 and n2o4 co2 and n2oco2 and
coiling of garden pea tendrils around any support is an example of1 thigmotaxis2 thigmonasty3 thigmotropism4
which one of the following statements about morula in humans is correct1 it has almost equal quantity of cytoplasm as an uncleaved zygote but much
which one of the following is one of the characteristics of a biological community1 stratification2 natality3 mortality4
db is a standard abbreviation used for the quantitative expression of1 the density of bacteria in a medium2 a particular pollutant3 the dominant
wind pollinated flowers are1 small brightly coloured producing large number of pollen grains2 small producing large number of dry pollen grains3
consider the following four statements a - d regarding kidney transplant and select the two correct ones out of these1 even if a kidney transplant is
heartwood differs from sapwood in1 presence of rays and fibres2 absence of vessels and parenchyma3 having dead and non-conducting elements4 being
some of the characteristics of bt cotton are1 long fibre and resistance to aphids2 medium yield long fibre and resistance to beetle
genetic engineering has been successfully used for producing1 transgenic mice for testing safety of polio vaccine before use in humans2 transgenic
some hyperthermophilic organisms that grow in highly acidic ph2 habitats belong to the two groups1 eubacteria and archaea2 cyanobacteria and diatoms3
algae have cell wall made up of1 cellulose galactans and mannans2 hemicellulose pectins and proteins3 pectins cellulose and proteins4 cellulose
c4 plants are more efficient in photosynthesis than c3 plants due to1 higher leaf area2 presence of larger number of chloroplasts in the leaf cells3
a renewable exhaustible natural resource is1 coal2 petroleum3 minerals4 forestforest is a renewable exhaustible natural
which one of the following is not a lateral meristem1 intrafascicular cambium2 interfascicular cambium3 phellogen4 intercalary
restriction endonucleases are enzymes which1 make cuts at specific positions within the dna molecule2 recognize a specific nucleotide sequence for
cu ions released from copper - releasing intra uterine devices iuds1 make uterus unsuitable for implantation2 increase phagocytosis of sperms3
which one of the following statements about certain given animals is correct1 round worms aschelminthes are pseudocoelomates2 molluscs are
which one of the following kinds of animals are triploblastic1 flat worms2 sponges3 ctenophores4 coralsflat
the first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy1 fourth month2 fifth month3
which one of the following statements about all the four of spongilla leech dolphin and penguin is correct1 penguin is homiothermic while the
toxic agents present in food which interfere with thyroxine synthesis lead to the development of1 toxic goitre2 cretinism3 simple goitre4
carrier ions like na facilitate the absorption of substances like1 amino acids and glucose2 glucose and fatty acids3 fatty acids and glycerol4