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Q74.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Water is an excellent solvent. Reason R […]

Q73.Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A:The density of RNA molecule is higher than that of […]

Q72.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Primitive groove is the functional equivalent to […]

Q71.Which of the following statements are true? A. Dominant species have a large effect on the community because of its abundance.B. Keystone species have a large role in community, out […]

Q70.In deserts, Kangaroos can survive without drinking water because of the following reasons A. Dependence on protein rich diet B. Greater ADH level in the blood C. Absence of sweat […]

Q69.Choose the correct statement. A. Mean, median and mode are measures of central tendency.B. Range, quartile range and standard deviation are the measures of spread or variability.C. Variance is the […]

Q68.The animals having segmented body belong to the phylum A. Protozoa B. Cnidaria C. Ctenophora D. Annelida E. Arthropoda Choose the correct answer from the options given below : (1) […]

Q67.Which of the following are correct for MHC-I molecule? A. GlycoproteinB. Expressed by nearly all nucleated cellsC. Present antigen to Tₕ (T-helper) cellsD. Peptide-binding domain is α1 and β1 Choose […]

Q66.Pernicious anemia is a result of A. Deficiency of Vitamin B₂B. Deficiency of Vitamin CC. Blockage of Vitamin B₁₂ absorptionD. Blockage of Vitamin A absorptionE. Lack of proteins in diet […]

Q65.Choose the correct statement. A. Differential gene expression can occur only at the level of transcription.B. RNA polymerase binds to the promoter region to initiate transcription.C. Enhancers regulate transcription.D. Transcription […]