___A_________ in 1935 showed that viruses could be crystallised and crystals consists largely of _____B_____.

	A	B
1.	W.M. Stanley	nucleic acid
2.	W.M. Stanley	proteins
3.	M.W. Beijerinek	nucleic acid
4.	L. Pastuer	proteins

• A

  1

• B

  2

• C

  3

• D

  4