DNA extraction is a useful technique for scientists because it can be used _____.

A.
to determine if people are related

B.
to absorb viruses

C.
to verify a person’s personality

D.
to see the nuclei of cells

DNA extraction is a scientific and medical technique developed to obtain the genetic identity of a being through one of its substances or tissues, for example, blood, saliva, hair, or a piece of skin. This method has been used in both animals and humans to establish a relationship between them. It has been used to classify species and in humans to establish family closeness as paternity, maternity or family closeness, because when two or more organisms are related their genetic identity its similar or equal. So, the correct answer is A. To determine if people are related.

DNA extraction is a useful technique for scientists because it can be used _____. A. to determine if people are related B. to absorb viruses C. to verify a person’s personality D. to see the nuclei of cells

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DNA extraction is a useful technique for scientists because it can be used _____.

A.
to determine if people are related

B.
to absorb viruses

C.
to verify a person’s personality

D.
to see the nuclei of cells