If the karyotype you constructed were for a female with down syndrome what chromosomes changes would be evident

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

The distribution of related animals and plants across the world

Me with biology endocrine system crossword also image left i need with hw