In biotechnology, 'Bt brinjal' is a genetically modified crop developed to provide resistance against: MCQ with Answer and Explanation

Explanation:
G.H.A. Hansen discovered Mycobacterium leprae in 1873, the first bacterium identified as causing a human disease. Koch later discovered TB.

Explanation:
Resistin is a cysteine-rich peptide hormone secreted primarily by adipose tissue in humans (though in rodents, it is mainly secreted by macrophages). Its name is derived from its proposed role in 'resistance' to insulin. Its primary function is to antagonize the action of insulin, thereby promoting insulin resistance. It does this by increasing hepatic glucose production (gluconeogenesis) and impairing glucose uptake by muscle and adipose tissue. Elevated levels of resistin are associated with obesity and type 2 diabetes, linking adiposity to insulin resistance.

Explanation:
R.H. Whittaker's five-kingdom classification (1969) categorizes organisms into Monera, Protista, Fungi, Plantae, and Animalia. Monera includes all prokaryotes—bacteria, cyanobacteria, and archaebacteria—characterized by lack of true nucleus and membrane-bound organelles. Protista includes unicellular eukaryotes. Fungi are multicellular saprophytes. Plantae are autotrophic eukaryotes. Monera is the only kingdom of prokaryotes in this system.