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Q.100. During immune response, helper T-cell memory against the antigen appears earlier than the B memory cells. Which one of the following is the primary reason for this phenomenon? (A) […]

Q.99. In the field of community ecology, the lerm “competitive exclusion” refers to two species that cannot co-exist (A) in a community if the niches are identical. (B) in two […]

Q.98. Which one of the following options is NOT a viable strategy for developing a female contraceptive? The administration of (A) a combination of synthetic progesterone and estrogen (B) synthetic […]

Q.97. An alien species has been discovered with very similar genetie makeup as that of the existing species on planet earth with certain differences. The genetic material of this new […]

Q.96. Neurogen (Ngn) a newly discovered protein in chicken. is produced by the notochord and the floor plate (FP). Ngn induces cells of the neural tube (NT) to become neurons. […]

Q.95. In allopatric mode of specialion, a new species forms due to (A) Geographic isolation (B) Genetic drift (C) Formation of a few fertile individuals thar can not mare with […]

Q.94 As compared lo peplide hormones, steroid hormones take more lime to activate a celluiar response because (A) steroid hormones show non-specific binding with diverse sets of receptors. (B) steroid […]

Q.93 In the context of cell differentiation, lateral inhibition is referred 1o as the (A) formation of two distinct cell types within a uniform field, (B) inhibilion of formation of […]

Q.92.Which one of the following results from Mendel’s monohybrid cross is the strongest evidence against the blending theory? (A) 3:1 ratio of phenolypes in the FI generation (B) All progeny […]