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Q.93 The term “ecological succession” refers to:(A) A process wherein newer species populate a region that was devoid of flora and fauna(B) A transition phase wherein one particular set of species […]

Q.92 The formation of antigen-antibody complex helps in disposing antigen through the followingpathways EXCEPT:(A) Neutralizing the antigen by blocking its activity(B) By directly hydrolyzing the antigen(C) By promoting the precipitation of […]

Q.91 Which one of the following defects do you expect to see if you were able to specifically blockapoptosis in the developing limb bud of a frog embryo?(A) The digits will […]

Q.90 Testicular feminization syndrome is a genetic condition wherein an individual with a XY genotypewill have an external female-like phenotype. This is caused by(A) Functional loss of androgen receptor(B) Increased production […]

Q.89 Control mechanisms operate at any of the several steps involved in gene expression. Which one ofthe following is the key mode of regulation during the cell cycle?(A) Transcription(B) mRNA processing(C) […]

Q.88 The primary difference between glycogen and cellulose is in the (A)types of constituent monosaccharides (B)number of monomers per molecule (C)configuration of the monomers (D)susceptibility to acid hydrolysis Glycogen and […]

Q.87 Which one of the following is an example of sympatric speciation?(A) Origin of new species among wasps that pollinate figs(B) Emergence of a new species among finches that migrated to […]

Q.86 Which one of the following provides the strongest support for the theory of “descent withmodification”?(A) Early embryonic forms of diverse organisms (examples: fishes, birds and mammals) appearsimilar(B) Ability of fishes […]

Q.85 A bacterial population increases from 103 cells to 109 cells in 10 h. Calculate the number of generations per hour. (A) 20 (B) 10 (C) 4 (D) 2 Introduction […]

Q.84 How many electrons are accepted when sulfate acts as the terminal electron acceptor in bacteria such as Desulfovibrio? (A) 8 (B) 6 (C) 4 (D) 2 Sulfate (SO₄²⁻) is […]