Question

Which one is correct

• A. Catalytic converter can precipitate particular matter of less than 2-5
• B. Histones are acidic and form core of packing
• C. Template with $5^{\prime }⟶3^{\prime }$ polarity shows continuous DNA replication
• D. Lactobacillus is not present in dough for idli preparation

Answer 1

The correct option is A Catalytic converter can precipitate particular matter of less than 2-5

• DNA replication goes in the 5' to 3' direction because DNA polymerase acts on the 3'-oh of the existing strand for adding free nucleotides.
• Histones are rich in the basic amino acid residues lysines and arginines and forms histone octamer.
• Catalytic converters, having expensive metals namely platinum-palladium and rhodium as the catalysts, are fitted into automobiles for reducing the emission of poisonous gases.
• As the exhaust passes through the catalytic converter, unburnt hydrocarbons are converted into carbon dioxide and water, and carbon monoxide and nitric oxide are changed to carbon dioxide and nitrogen gas, respectively.
• Fermentation of idli or dosa batter is carried out largely by lactic acid bacteria, the same class of microorganisms that are found in ‘curd.’
  
• So the correct answer is " Template with 5′⟶3′ polarity shows continuous DNA replication ".