DNA analysis is the process in which genetic sequences are studied. It is used by law enforcement and medical personnel to identify a particular person or species, and even specific cancers and diseases. At one point the analysis process was very limited.
To round off to the nearest tenth, means to keep one decimal digit. (To round off to the nearest hundredth would mean to keep two digits; to the nearest thousandth, three; and so on. Now, the digit in the second decimal place is 5. Therefore add 1 to the previous digit 2.
When you have finished this page, try the Thousandths Quiz. Thousandths, as the word implies, is the place value that represents one thousandth of a whole. It is also one tenth of a hundredth and one hundredth of a tenth. The thousandths place is commonly encountered in science, in the metric system of measure. Below is a chart that shows the relationship between tenths, hundredths and thousandths. In a sense, each tenth and hundredth can be expressed as a thousandth.