निम्न में से कौन-सा बैक्टीरिया मुख्य रूप से क्षारीय pH वाले वातावरण में वृद्धि करता है?

Which of the following is CORRECT regarding the composition of viroids?

Why can yeast not produce alcoholic beverages with an alcohol content higher than ~13% naturally?

Which staining technique is used to differentiate bacteria into gram-positive and gram-negative based on their cell wall properties?

The bacterium 'Escherichia coli' (E. coli) is naturally found mainly in which organ of the human body?

Penicillin, a widely used antibiotic, is obtained from which of the following organisms?

Which type of genetic material is present in the Human Immunodeficiency Virus (HIV)?

Which of the following groups of biological microorganisms is primarily responsible for the rapid spoilage of highly perishable fruits and vegetables?

Match the bacteria in Column X with their respective characteristics/impacts in Column Y: Column XColumn YA. Enterobacteriaceae (specific strains)i. Re-emerged as significant community- and hospital-acquired infection due to Methicillin resistanceB. Rickettsia (specific strains)ii. Multi-drug resistant (MDR) strains found in humans and foodC. Salmonella and Klebsiella pneumoniaeiii. Difficult to treat due to resistance to multiple antibiotics, mainly CarbapenemD. Staphylococcus aureusiv. Causative agent of murine typhus, transmitted via organ transplants/vectors Which one of the options below is the correct match?