Two mothers give birth to sons at the same time at a busy urban hospital. The son of mother 1 is afflicted with hephilia, a disease caused by an X-linked recessive allele. Neither parent has the disease. Mother 2 has a normal son, despite the fact that the father has hemophilia. Several years later, couple 1 sues the hospital, claiming that these two newborns were swapped in the nursery following their birth. As a genetic counselor, you are called to testify. What information can you provide the jury concerning the allegation?

X linked traits are typically passed from the mothers to their affected son if mothers are carrier, despite the father of hemophiliac condition there is no base as X linked characters does not pass from father to son, that is the case in their son being normal. So the Mother 1 has no valid point in her claim.

As it is mentioned that neither mother 1 nor father 1 has the disease (but chances are mother can be carrier)

Mother 1: XXª     Father 1: XY

                    XªY

In couple 2, father has hemophilia, due to father gives Y not X this doesnt matter.

Mother 2: XX      Father 2: XªY

            Son 2: XY

identify 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.v

the answer would be knowledge about cars!