Q.32 Arrange the following in order of their action – (A) G1 cyclin CDK complex (B) APC–Cdh1 (C) S phase cyclin CDK complex (D) APC–Cdc20 Choose the correct sequence answer […]
Q.31 N-linked glycosylation in proteins of eukaryotes is initiated in the: Lumen of the endoplasmic reticulum Lumen of the Golgi apparatus Inside the nucleus Within endosomes Correct Answer: Lumen of […]
Q.30 Rifampicin, an inhibitor of RNA polymerase, is added to a bacterial culture. The culture is immediately divided into three fractions, to which radioactive thymine or uracil or methionine are […]
Q.29 The Asian mongoose and the American skunk evolved independently of each other, but show similar structures and features (for example, the ability to spray their attacker with musk). The […]
Q.28 Which of the following is NOT TRUE with respect to control of respiration? Peripheral chemoreceptors respond to changes in O2 and CO2 concentration in the blood. Respiration responds to […]
Q.27 Place these steps in temporal order, first to last: Exocytosis of synaptic vesicles. Binding of neurotransmitter molecules to its receptors. Opening of voltage-gated Ca2+ channels. Opening of Na+ channels […]
Q.25 Which one of the following are correct characteristic features set for bony fishes? Heterocercal caudal fin; 5–7 pairs of gill slits; exoskeleton is made up of cycloid scales. Homocercal […]
Q.24 Select the vegetation type having highest productivity per unit weight (g leaf biomass-1 year-1) from the following sites: Desert Deciduous forest Coniferous forest Grassland Desert vegetation exhibits the highest […]
Q.23 Select the plant or ecosystem known to have highest energy conversion efficiency: Tropical forest plantation Sugar cane Cornfield Open sea Sugar cane has the highest energy conversion efficiency among […]