A) Annual rings are not prominent in trees of temperate region. B) Annual ring is a combination of spring wood and autumn wood produced in a... View Article
A) Inbreeding helps in accumulation of superior genes and elimination of undesirable genes B) Inbreeding increases homozygosity C) Inbreeding... View Article
A) Lysosomes are membrane structures B) Lysosomes have numerous hydrolytic enzymes C) The hydrolytic enzymes of lysosomes are active under... View Article
A) Genetic code is specific B) Genetic code is not ambiguous C) Genetic code is redundant D) Genetic code is nearly universal Answer:D)... View Article
A) Gymnosperms B) Liverworts C) Mosses D) Pteridophytes Answer:Â D) Pteridophytes Explanation: The female gametophyte with the developing... View Article
A) reduction in the secretion of surfactants by pneumocytes B) benign growth on mucous lining of nasal cavity C) inflammation of bronchi and... View Article
A) Geneva Protocol B) Montreal Protocol C) Kyoto Protocol D) Gothenburg Protocol Answer:Â B) Montreal Protocol Explanation: Montreal protocol... View Article
A) One fuses with the egg and other fuses with central cell nuclei. B) One fuses with egg other(s) degenerate(s) in the synergid. C) All fuse... View Article
A) Alien species invasion B) Habitat loss and fragmentation C) Drought and floods D) Economic exploitation Answer:Â B) Habitat loss and... View Article
A) Nuclear envelope and Mitochondria B) Mitochondria and Lysosomes C) Chloroplast and Vacuoles D) Lysosomes and Vacuoles Answer:Â D) Lysosomes... View Article
A) Pyramid of biomass in a sea B) Pyramid of numbers in grassland C) Pyramid of energy D) Pyramid of biomass in a forest Answer:Â A) Pyramid... View Article
A) Bi-directional B) Non-multidirectional C) Upward D) Downward Answer:Â A) Bi-directional Explanation: Leaves prepare carbohydrates by... View Article
A) There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs. B) 8th, 9th and 10th pairs of ribs... View Article