Absence of one sex chromosome causes

Absence of which chromosome causes Turner's syndrome ?

Define sex chromosomes.

Which disorder is caused in man due to presence of one extra sex chromosome ?

(A): Trisomic condition of chromosome-21 results in Down's syndrome Reason (R): Mitotic or meiotic non-disjunction of sex chromosomes causes autosomal abnormalities.

Which disorder is caused in man by the presence of one extra sex chromosome?

Name the disorder caused due to the absence of one of the X-chromosomes in a human female.

Name the disorder caused due to the absence of one of the X-chromosomes in a human female.

Sex chromosomes are called :