Who among the following were the first to use antibiotics for the control of bacterial diseases?
A. Brown and Boyle (1945)
B. Ark and Alcern (1956)
C. De Bruyn and Melhus (1926)
D. Roy and Das (1968)
Answer: Option A
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem

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