the karyotype of turner's syndrome
Answers
Answer:
Turner syndrome is caused by partial or complete loss (monosomy) of the second sex chromosome. ... Thus, females with a normal chromosome make-up (karyotype) have 46 chromosomes, including two X chromosomes (46, XX karyotype). Each chromosome has a short arm designated “p” and a long arm designated “q”.
Answer:
Explanation:
The first karyotype investigation in a patient with Turner syndrome (TS) was performed in England, in 1959; prior to that, it was thought that humans possessed 48 chromosomes. Most individuals with down-syndrome possess 47 chromosomes, with an extra copy of chromosome 21. Most individuals with TS possess 45 chromosomes, with a missing X chromosome. Here, we present 45 XO karyotype analysis in a 12-year-old girl with TS; although it is common in females, it is still rare to encounter in dental institutions. Oral physicians and pediatric dentists need to be aware of the major clinical features for definitive diagnosis of TS for early recognition and timely investigation which will improve their quality of life and to guide for the oral care.