Q.2 The Diels-Alder adduct from the reaction between cyclopentadiene and benzyne is No, there is no standard Diels-Alder adduct from cyclopentadiene and benzene under typical conditions. Benzene does not act […]
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The Molecule with Net Non-Zero Dipole Moment
Q.1 The molecule having net ‘non-zero dipole moment’ is (A) CCl4 (B) NF3 (C) CO2 (D) BCl3 Which Molecule Has a Net Non-Zero Dipole Moment? CCl4, NF3, CO2, or BCl3 […]
Matching Animals to Characteristics
Q. 105 Given below is the list of animals and their respective characteristics. Animals I. Sea anemone II. Bluefly III. Starfish IV. Sponge Characteristics i. Three pairs of jointed legs […]
Understanding Phenotypic Plasticity in Desert Locusts
Q. 104 The migratory desert locust, Schistocerca gregaria, exists in two mutually exclusive forms: a shortwinged, uniformly colored, solitary insect and a long-winged, brightly colored, gregarious morph. These phenotypes depend […]
What Happens When Bicoid mRNA
Q. 103 In an experiment involving Drosophila development, a large amount of purified bicoid mRNA was injected into the posterior end of a wild-type embryo, the resulting developing embryo will […]
Entamoeba histolytica in Freshwater
Q. 102 Entamoeba histolytica is an intestinal parasite that causes dysentery in humans. This parasite resides in the isotonic environment of intestine and other tissues in the human body and […]
Unraveling Glycoprotein Hormones
Q. 101 Glycoprotein hormones, hCG and eCG, are synthesized in women and mares respectively, during pregnancy. Both of these chorionic gonadotropin hormones (A) have only LH-like activity in their respective […]
Sea Urchin Embryo Development
Q. 100 In an experiment involving development of 64-cell stage sea urchin, an isolated animal hemisphere was combined with isolated micromeres. Which ONE of the following will be the resulting […]
How Eukaryotic Cells Coordinate Multiple Gene Expression
Q. 99 Which ONE of the following mechanisms is used to coordinate the expression of multiple, related genes in eukaryotic cells? (A) Environmental signals enter the cell and bind directly […]
Primary Function of Polysaccharides in Glycoproteins
Q. 98 The primary function of polysaccharides attached to glycoproteins in the animal cell membrane is to (A) facilitate diffusion of molecules down their concentration gradients. (B) maintain membrane fluidity […]


