Does turner's syndrome occur in all cells?

Answer 1

No, only the gametes would be indicative of sterility. It is possible that the individual (though incredibly rare) to have "chimera" syndrome, where two non-identical twins merge to form one fetus. Turner's Syndrome is the absence of the male sex chromosome BTW. That chromosome carries little genetic information, and is possible during mitosis to "loose" it, but still create a mostly viable cell.

Answer 2

It depends on the type of Turner syndrome.

There is one type in which all cells are affected, which is called classic Turners. The karyotype for classic Turners is 45x.

There is another type in which not all cells are affected. This is called Mosaic Turners. The karyotype for Mosaic Turners is 45x/46xx.

Answer 3

Generally the answer would be yes since the reason any genetic testing would be done is if an individual had Turner's syndrome characteristics, however, an individual could be a chimera, where some cells have the correct cell complement and others do not. How a chimera was affected would hinge on which parts of the body were 2N and which were 2N-1.

Answer 4

Turner syndrome is typically caused by a genetic mutation that affects all cells in the body. This results in females born with only one fully functioning X chromosome instead of the usual two. However, there can be variations in the severity and impact of the syndrome depending on the specific genetic abnormality present.