Despite its unbelievable complexity, the DNA molecule is only 1  10,000,000 inch 00000025 mm in diameter, far too small to be seen except with the aid of a powerful microscope
अतिशय शक्‍तिशाली मायक्रोस्कोपच्या साहाय्यानेच केवळ हा रेणू पाहता येतो.