Author: admin

Q.92 A mature rat sperm cell has 2.5 μg of genomic DNA that is equivalent of ahaploid genome. Compared to this sperm cell, the amount of genomic DNA(in μg) in […]

Q.91 In a population of 1000 wild dogs in a grassland, 360 and 480 dogs had blackbody colour with genotypes BB and Bb, respectively. In the same population,remaining dogs were […]

Q.90 Which of the following is/are the causative agent(s) of Filariasis?(A) Wuchereria bancrofti(B) Leishmania donovani(C) Brugia malayi(D) Trypanosoma gambiense Correct Answer: (A) and (C) Filariasis, specifically lymphatic filariasis, is caused […]

Q.89 The organisms that obtain energy from inorganic compounds are known as(A) Autotrophs(B) Organotrophs(C) Lithotrophs(D) Phototrophs Correct Answer: (C) Lithotrophs Lithotrophs are organisms that derive energy specifically from the oxidation […]

Q.88 Which of the following animals show “Bottle cells” during the gastrulation stageof development?(A) Snails(B) Amphibians(C) Birds(D) Mammals Bottle Cells in Amphibian Gastrulation: MCQ Explanation and Key Insights Bottle cells […]

Q.87 Which one of the following represents a true “Ecological population” ?(A) A pitcher plant and a trapped fly in it(B) All animals that live near each other in a […]

Q.86 Which one of the following describes the “innate behavior” of an animal?(A) A behavior that is triggered due to the change in environment.(B) A behavior that is trained by […]

Q.85 Which one of the following animals has “Book Lungs” as a respiratory organ?(A) Earthworm(B) Scorpion(C) Octopus(D) Starfish Scorpion is the correct answer (Option B). Book lungs serve as the […]

Q.84 During the exponential growth, it took 6 hours for the population of bacterial cellsto increase from 2.5 × 106 to 5 × 108. The generation time of the bacterium,rounded […]

Q.83 The spontaneous, and induced mutations in bacteria can be distinguished by(A) fluctuation test(B) replica plating(C) disc diffusion test(D) use–dilution test Correct Answer: (A) fluctuation test The fluctuation test distinguishes […]