Tag: GATE Life Science Previous Year Papers with Solutions

Q. 93 Toxoplasmosis in humans is caused by Toxoplasma gondii, an obligate intracellular parasite with two different life cycles, sexual and asexual. The sexual cycle occurs in which ONE of […]

Q. 92 When cells are treated with cyanide, which ONE of the following organelles will have the highest level of cyanide inside? (A) Mitochondria (B) Peroxisomes (C) Lysosomes (D) Endoplasmic […]

Q. 91 Detoxification of alcohol occurs in liver cells where peroxisomal enzymes remove hydrogen from it, which is (A) combined with water molecules to generate hydrogen peroxide. (B) used to […]

Q.90 Which of the following cations are found in higher concentration in extracellular fluid as compared to intracellular fluid in animals? (A) Na+and Ca++ (B) K+and Ca++ (C) K+and Mg++ […]

Q. 89 The sex of a Drosophila melanogaster, which has 4 copies of X-chromosomes and 4 sets of autosomes will be (A) female. (B) male. (C) metafemale. (D) metamale. In Drosophila […]

Q. 88 The nature of the polymorphic DNA fragment used for mapping is (A) dominant. (B) partial dominant. (C) co-dominant. (D) recessive Understanding the Nature of Polymorphic DNA Fragments in […]

Q. 87 A population of Bees develops resistance to pesticides and the trait gets fixed within a few generations. This is an example of (A) macroevolution. (B) disruptive selection. (C) […]

Q.86 Acorn worms (Saccoglassus sp.) belong to which ONE of the following Phyla? (A) Platyhelminthes (B) Achelminthes (C) Hemichordata (Chordata) (D) Annelida Acorn worms, including species like Saccoglossus, belong to the […]

Q.85 Match the antibiotics given in Group I with appropriate targets from Group II. Group I (P) Nalidixic acid (Q) Tetracycline (R) Erythromycin (S) Rifampin Group II (I) RNA polymerase […]

Q.84 Match the cell structure components given in Group I with appropriate functions from Group II. Group I (P) Cell membrane (Q) Purple membrane (R) Cisternae (S) Outer membrane Group […]