Ayoung boy has been found, and police are trying to locate his family. they take a dna sample from him and begin collecting dna samples from families who have missing children. if police use dna samples only from the fathers, which type of dna technology can they use to identify the boy's parent? y-chromosome analysis mtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) pcr (polymerase chain reaction) analysis

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west. a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?