Which of the following statements is true? 1.all genes are dominant.\ 2.a hybrid organisms has one recessive gene and one dominant gene. 3.genotype is the expression of a trait. 4.only pea plants with two dominant genes for tallness will have a tall phenotype.

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