Hugh, a 56-year-old health care worker, has no laboratory evidence of immunity to measles or mumps and cannot confirm that he had either disease. how many doses of mmr vaccine should hugh receive?

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.