9-10. Rh factors are proteins that were first discovered in the blood of Rhesus Monkeys, but humans have them too. If you are Rh positive, it means that there are Rh type proteins in your blood. If you are Rh negative, there are no Rh type proteins in your blood. Positive is dominant over negative, so heterozygous individuals are Rh positive. Problems can arise when a Rh-negative mother has a child who is Rh positive. Which of the statements will answer the following questions: Why does the mother's body attack her own baby in this situation? Why does the situation get worse for the second pregnancy?

Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter42: The Immune System
Section: Chapter Questions
Problem 3VCQ: Figure 42.16 The Rh antigen is found on Rh positive red blood cells. An Rh-negative female can...
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9-10. Rh factors are proteins that were first discovered in the blood of Rhesus Monkeys, but humans
have them too. If you are Rh positive, it means that there are Rh type proteins in your blood. If you are
Rh negative, there are no Rh type proteins in your blood. Positive is dominant over negative, so
heterozygous individuals are Rh positive. Problems can arise when a Rh-negative mother has a child
who is Rh positive. Which of the statements will answer the following questions: Why does the mother's
body attack her own baby in this situation? Why does the situation get worse for the second pregnancy?
a. The mother's body sees the foreign proteins produced by her baby as a threat. She builds up
antibodies against them.
b. The baby is delivered before the situation gets too out of hand, but the next pregnancy will be
more problematic because her immune system is sensitized and fully prepared at the onset of
the next pregnancy.
c. Her immune system attacks the baby, often resulting in a miscarriage. Immune suppressing
drugs can be given to the mom, but then she's more likely to get sick because her body's germ
fighting ability is diminished.
d. All of the statements above
Transcribed Image Text:9-10. Rh factors are proteins that were first discovered in the blood of Rhesus Monkeys, but humans have them too. If you are Rh positive, it means that there are Rh type proteins in your blood. If you are Rh negative, there are no Rh type proteins in your blood. Positive is dominant over negative, so heterozygous individuals are Rh positive. Problems can arise when a Rh-negative mother has a child who is Rh positive. Which of the statements will answer the following questions: Why does the mother's body attack her own baby in this situation? Why does the situation get worse for the second pregnancy? a. The mother's body sees the foreign proteins produced by her baby as a threat. She builds up antibodies against them. b. The baby is delivered before the situation gets too out of hand, but the next pregnancy will be more problematic because her immune system is sensitized and fully prepared at the onset of the next pregnancy. c. Her immune system attacks the baby, often resulting in a miscarriage. Immune suppressing drugs can be given to the mom, but then she's more likely to get sick because her body's germ fighting ability is diminished. d. All of the statements above
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