Question

A human female with Turner’s Syndrome
A. Have 45 chromosomes with X0
B. Has one additional X chromosome
C. Exhibits male characters
D. Is able to produce children with normal husband

Answer 1

Hint: Turner syndrome occurs when one of the X chromosomes (sex chromosomes) is absent or partly absent, a disorder that affects only females.

Complete Answer:
- A range of medical and developmental problems can be caused by Turner syndrome, including short height, ovarian failure to develop, and heart defects.
- Before birth (prenatally), during infancy or in early childhood, Turner syndrome may be diagnosed. In females with mild signs and symptoms of Turner syndrome, the diagnosis is sometimes postponed until the age of puberty or young adulthood.
- A chromosomal abnormality is the product of Turner syndrome.
- In each cell, a individual normally has 46 chromosomes, divided into 23 pairs, which include two sex chromosomes.
- Half of the chromosomes and the other half of the mother are inherited from the father. Chromosomes produce genes that decide the characteristics of an organism, such as eye colour and height.
- Typically, girls have two X chromosomes (or XX), but girls with Turner syndrome either have one X chromosome, or part of one X chromosome is missing.
- Turner syndrome is not induced by something the parents of a girl did or did not do. The disorder is a random cell division error that occurs when the reproductive cells of a parent are formed.
- There is mosaic Turner syndrome in girls born with the X disorder in only some of their cells. Their symptoms and signs are often milder than those of other girls with X condition.

The correct answer is option (A) Have 45 chromosomes with X0.

Note: A physician can look for the physical features of Turner syndrome during a physical exam. This may differ widely; there are many features or symptoms for some girls with TS; others have just a few.
To diagnose Turner syndrome, doctors use a special blood test that looks at chromosomes (a karyotype). TS-indicating findings reveal 45 chromosomes instead of the usual 46. There are two X chromosomes in some children, but one is misshapen or missing a piece.