The third trimester marks the home stretch, as she gets ready for the birth of the baby. The fetus continues to grow in weight and size, and the body systems finish maturing. She may feel more uncomfortable now. She will continue to gain weight and begin to have false labor contractions (Braxton-Hicks contractions) along with other pregnancy symptoms (heart burn, swollen ankles etc.)
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Answer:
Gene-environment interactions.
Explanation:
In gene-environment interactions, the field of epigenetics looks beyond the genotype itself and studies how the same genotype can be expressed in different ways. Scientists studied how the same genotype can turn out to be very different phenotypes. Gene expression is most of the time influenced by the environment in ways that are not always obvious. As we see in this case, identical twins share the same genetic information, their genetic material is exactly the same, but even with identical genes, there can be an incredible amount of difference in how gene expression can turn out throughout each twin’s life, one with schizophrenia and one completely healthy mentally.
