Pressure would be greatest in the ventricles when . View Available Hint(s) Pressure would be greatest in the ventricles when . AV valves are open and semilunar valves are closed oxygen-rich blood arrives at the left atrium the ventricles contract oxygen-rich blood arrives at the right ventricle

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.