How much time does the average human need to sleep per day?

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

Why is it incorrect to say that mitochondria function only as energy factories with cell

What in scientific term why the salty popcorn causes this thirst