A) Schleiden and Schwann
B) Watson and Crick
C) Darwin and Wallace
D) Mendel and Morgan
Correct Answer: A
Solution :
Cell theory was proposed by Malthias Schleiden (1838) a botanist of Germany and Theodor Schwann (1839) a zoologist also of Germany in 17th century. According to them, "All living beings are made up of cells." "The cell is the basic morphological and functional unit of life."
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