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Turner syndrome occurs in between one in 2,000 [4] and one in 5,000 females at birth. [5] All regions of the world and cultures are affected about equally. [10] Generally people with Turner syndrome have a shorter life expectancy, mostly due to heart problems and diabetes. [7] American endocrinologist Henry Turner first described the condition ...
Trisomy 18, also known as Edwards syndrome, is a genetic disorder caused by the presence of a third copy of all or part of chromosome 18. [3] Many parts of the body are affected. [ 3 ] Babies are often born small and have heart defects . [ 3 ]
Karyotype of a human with Trisomy 21 (Down syndrome). Trisomies can occur with any chromosome, but often result in miscarriage rather than live birth.For example, Trisomy 16 is most common in human pregnancies, occurring in more than 1%, but the only surviving embryos are those having some normal cells in addition to the trisomic cells (mosaic trisomy 16). [3]
The existence of genes along the inactive X which are not silenced explains the defects in humans with atypical numbers of the X chromosome, such as Turner syndrome (X0, caused by SHOX gene [43]) or Klinefelter syndrome (XXY). Theoretically, X-inactivation should eliminate the differences in gene dosage between affected individuals and ...
Nail–patella syndrome is a genetic disorder that results in small, poorly developed nails and kneecaps, but can also affect many other areas of the body, such as the elbows, chest, and hips. The name "nail–patella" can be very misleading because the syndrome often affects many other areas of the body, including even the production of ...
Elite runners may live longer than the average person. For this study, la Gerche and his team focused on the longevity of a group of the first 200 male elite runners to run a sub-4-minute mile.
Turner syndrome is the only full monosomy that is seen in humans — all other cases of full monosomy are lethal and the individual will not survive development. Cri du chat syndrome – (French for "cry of the cat" after the persons' malformed larynx) a partial monosomy caused by a deletion of the end of the short arm of chromosome 5
Turner started by writing a story, published in the New Yorker. “So, I got over that hurdle and I was like, ‘Wow, no one died!’ “So, I got over that hurdle and I was like, ‘Wow, no one ...