The length of DNA strand is .
(The decimal point moves 7 places)
(The exponent is negative)
The length DNA in scientific notation is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c53a9e8eb62a755f0c7cd0dcf118a5ba.png\")
(The decimal point moves 7 places)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30365d37fcc7a5576213ac835e424387.png\")
(The exponent is negative)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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.