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A pair of twins born in January in Australia share all of their mother's genes, but only 78 percent of their father's, according to a new case report published yesterday Feb. It's unclear how many other semi-identical, or "sesquizygotic," twins are out there, but it's likely "extraordinarily rare," said lead author Dr. Michael Gabbett, the diagnostic genomics course coordinator at the Institute of Health and Biomedical Innovation in Brisbane, Australia. The first set of semi-identical twins was identified in in the U. Initially, the mother of the twins described in the case report thought that she was pregnant with identical twins, based on an ultrasound early in her pregnancy. Later in the pregnancy, however, the woman's doctors were surprised to see that the twins were a boy and a girl.
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Pregnant with twins - NHS

Victorian government portal for older people, with information about government and community services and programs. Type a minimum of three characters then press UP or DOWN on the keyboard to navigate the autocompleted search results. The following content is displayed as Tabs. Once you have activated a link navigate to the end of the list to view its associated content. The activated link is defined as Active Tab. Pelvic floor exercises are designed to improve muscle tone and prevent the need for corrective surgery It also helps to know how pregnancy may affect your emotions and feelings

Male twins reduce fitness of female co-twins in humans

All pregnancies start when a sperm fertilises an egg. This forms twins. These twins are called fraternal twins, dizygotic twins meaning two zygotes or non-identical twins.
The majority of twins are fraternal twins twins that look different from one another. Learn more about fraternal twinning, from how they form to how they relate to each other, as well as how they differ from identical twins. Zygotic refers to zygote, the egg fertilized by the sperm that will develop into an embryo and grow into a baby.
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