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NEET Questions / Botany / Biotechnology and Its Applications
A 55-year-old male presents with progressive dyspnea, cough, and weight loss. A chest X-ray reveals bilateral hilar lymphadenopathy and interstitial infiltrates. Bronchoscopy with transbronchial biopsy shows non-caseating granulomas. Which of the following is the MOST likely diagnosis?
Sarcoidosis
Tuberculosis
Hypersensitivity pneumonitis
Lymphoma
A patient presents with fever, chills, and a new heart murmur. Blood cultures are positive for Streptococcus viridans. Which of the following is the MOST appropriate initial empiric antibiotic therapy?
Oral amoxicillin
IV ceftriaxone + vancomycin
IV gentamicin + vancomycin
Oral ciprofloxacin
Knockout mice lacking the gene for PrP (prion protein cellular form) are resistant to prion diseases. What can be directly concluded from this observation?
PrP is sufficient to cause prion diseases.
PrP is the infectious agent in prion diseases.
PrP is necessary for the development of prion diseases.
The absence of PrP enhances the immune response against prions.
A patient presents with persistent cough, fever, and night sweats. A chest X-ray reveals granulomas. Which of the following is the most likely diagnosis?
Pneumonia
Bronchitis
Asthma
Tuberculosis
Which of the following is NOT a typical symptom of rheumatoid arthritis?
Morning stiffness
Symmetrical joint involvement
Unilateral joint pain
Joint swelling
A patient experiences severe chest pain radiating to the left arm. Which diagnostic test is most crucial to confirm a suspected myocardial infarction?
Chest X-ray
Blood glucose test
ECG
Complete blood count
A patient presents with jaundice, abdominal pain, and a history of intravenous drug use. Which of the following is the most likely cause?
Hepatitis A
Hepatitis B
Hepatitis C
Alcoholic hepatitis
Which of the following is NOT a typical symptom of typhoid?
Sustained high fever
Diarrhea in the initial stages
Weakness and fatigue
Loss of appetite
Which disease is caused by the Plasmodium parasite?
Typhoid
Malaria
Pneumonia
Common cold
A common symptom of pneumonia is:
Enlarged liver
Inflammation of the alveoli
Skin rashes
Swollen lymph nodes