Write a brief account of Turner’s syndrome.

1.	Write a brief account of Turner’s syndrome.
Answer» 1. Turner’s syndrome is a genetic disorder caused due to monosomy of X chromosome. 2. It was first described by H. H. Turner. 3. Turner’s syndrome is caused due to non-disjunction of sex chromosomes which takes place during gamete formation. 4. Chromosomal complement of Turner’s syndrome is 44 + XO, having a total of 45 chromosomes. Symptoms of Turner’s syndrome are as follows: 1. Female phenotype. 2. Short stature with webbing of neck. 3. Low posterior hair line. 4. Secondary sexual characters fail to develop. 5. Mental retardation.

Answer»

1. Turner’s syndrome is a genetic disorder caused due to monosomy of X chromosome.

2. It was first described by H. H. Turner.

3. Turner’s syndrome is caused due to non-disjunction of sex chromosomes which takes place during gamete formation.

4. Chromosomal complement of Turner’s syndrome is 44 + XO, having a total of 45 chromosomes.

Symptoms of Turner’s syndrome are as follows:

1. Female phenotype.

2. Short stature with webbing of neck.

3. Low posterior hair line.

4. Secondary sexual characters fail to develop.

5. Mental retardation.

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