Question

The chromosomal complement of individuals with Turner's syndrome is

• A. $44A+XX$
• B. $44A+XY$
• C. $44A+XO$
• D. $44A+XXY$

Answer 1

The correct option is C $44A+XO$

• In the individual suffering from Turner's syndrome, one sex chromosome is absent.
• The total number of chromosomes in normal humans is 46. In Turner's syndrome, the number of chromosomes is 45.
• In normal females, the chromosomal complement is 44A + XX. In the affected individuals, the chromosomal complement is 44A + XO.

Thus, the correct answer is option C.