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Q.103 The relative number of individuals in each age group is an important demographic factor for thestudy of future growth trends, and this is normally depicted in the form of an […]

Q.102 Retroviruses, like the influenza virus, escape the detection of pre-existing antibodies in the host bygenerating surface antigen variants. They do so:(A) By editing the surface antigen post-translationally(B) Because RNA polymerase […]

Q.101 In Drosophila, mutations in homeotic genes result in which one of the following developmentaldefects?(A) The anterior portion of the embryo will not develop(B) Several segments in the anterior region of […]

Q.100 In vertebrates, the variations in the structure and function of nephrons are directly linked to theosmoregulatory requirements of the organisms depending on the habitats they live in. From theoptions given […]

Q.99 In a new species of moth, the genes for body colour (black, B, is dominant over grey, b), wing size(normal wing, W, is dominant over vestigial, w) and eye colour […]

Q.98 A newly discovered, recessively-inherited disease-susceptibility trait (DS) is observed only incotton plants with white flowers, although the flower colour (R) and DS are independentlyinherited. In a breeding programme, one variety […]

Q.97 Among the following options, choose the one that is probably a cause of rapid diversification ofanimal groups during the Cambrian explosion.(A) Adaptation of organisms to live in the salty environment […]

Q.96 Which of the following most accurately states the goal of systematics?(A) Classification scheme should reflect phylogenetic relationship(B) All animals should be classified based on the relatedness at the early embryonic […]

Q.95 Among the following cell structure-function pairs, identify the correctly paired one(A) Microvilli – engulfment of foreign bodies (B)Cytoskeleton – cell migration(C) Peroxisomes – cellular respiration (D) Nucleolus – mRNA transcription […]

Q.94 Which one of the following options provide example for the term “habituation” in behavioralecology?(A) A fish transferred to a fish tank startles initially for a hand clap, but not […]