What occurs in the menstral cycle day 1-4 for unfertilized egg in ovary?

Consider this plant cell which organelle is labeled g

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

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.