This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Chlaymydia in asymptomatic carriers, the most sensitive test is - \nSelect and explain. \nA. Tissue culture, B. Nucleic acid amplification test, C. Serology, D. Serum electrophoresis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Nucleic acid amplification test . Recently Nucleic acid amplification tests (NAAT), have'been developed for chlamydial infections. . These tests are well suited for screening ( asymptomatic carriers) as well as diagnosis. . These tests are the most sensitive and specific chlamydial diagnostic methods available, they are also the most expensive. . The tests are ? - Polymerase chain reaction (PCR) - Ligase chain reaction ( LCR) - Transcription mediated amplification (TCR) - DNA strand displacement amplification (SDA)", 'role': 'assistant'}]