Question

If extra Y chromosome is present in male then this is called:

• A. Jacob's syndrome
• B. Turner's syndrome
• C. Klinefelter's syndrome
• D. Patuo's syndrome

Answer 1

The correct option is A Jacob's syndrome

Jacob's syndrome disorder that affects males. It is caused by the presence of an extra Y chromosome. Male normally have one X and Y chromosomes. Affected individuals are usually very tall. May also suffer from learning disabilities and behavioural problems such as impulsivity.

Klinefelter syndrome is a genetic condition that results when a boy is born with an extra copy of the X chromosome. Klinefelter syndrome is a genetic condition affecting males, and it often is not diagnosed until adulthood.

Turner's syndrome, which affects only females, results when one of the X chromosomes (sex chromosomes) is missing or partially missing. It can cause various medical and developmental problems, including short height, failure of the ovaries to develop and heart defects.

Trisomy 13, also called Patau syndrome, is a chromosomal condition associated with severe intellectual disability and physical abnormalities in many parts of the body.