Which of the following tools of dna technology is incorrectly paired with its use?
a. electrophoresis—separation of dna fragments
b. dna ligase—cutting dna, creating sticky ends of restriction fragments
c. dna polymerase—polymerase chain reaction to amplify sections of dna
d. reverse transcriptase—production of cdna from mrna

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What material did the moon come from?