Question

as of 2020, however, there has been a significant change that will make dna fingerprinting obsolete. the handful of markers used in dna fingerprinting will give way to the infinitely more sophisticated personalized dna sequences. fingerprints may give us a match, but dna may tell us
for example, by examining a single cell from a person’s dandruff, it is in principle possible (using the polymerase chain reaction process) to reconstruct the entire genome of an individual. possessing the personalized dna
identify the important ideas about dna. check all of the central ideas from the passage.
☐ dna fingerprinting will become obsolete.
☐ dna testing will become more sophisticated.
☐ dna sequencing can be done from dandruff.
☐ dna can reveal all of a person’s characteristics.
☐ dna fingerprinting will keep improving.
done ☑

Explanation:

1. From the red box: "there has been a significant change that will make DNA fingerprinting obsolete" → supports "DNA fingerprinting will become obsolete".
2. From the red box: "the handful of markers... will give way to the infinitely more sophisticated personalized DNA sequences" → supports "DNA testing will become more sophisticated".
3. From the blue box: "by examining a single cell from a person’s dandruff... to reconstruct the entire genome" → supports "DNA sequencing can be done from dandruff".
4. From the red box: "DNA may tell us [about a person]" and the blue box's genome reconstruction implies DNA reveals characteristics → supports "DNA can reveal all of a person’s characteristics".
5. The red box says DNA fingerprinting becomes obsolete, so "DNA fingerprinting will keep improving" is incorrect.

Answer:

• DNA fingerprinting will become obsolete.
• DNA testing will become more sophisticated.
• DNA sequencing can be done from dandruff.
• DNA can reveal all of a person’s characteristics.