Valence electrons are found... a. in the first energy level
b. in the last energy level
c. in the second energy level

Witch type of microscope is used to view very small cell components like proteins and dna?

Ais a group of individuals of the same that exist together in the same place at the same time

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