What is the condition called when a human male develops breast tissue similar to that of a female?

What is the number of Barr bodies in a male with Jacobs syndrome?

If the somatic cells of a male contain one Barr body,what would be their genetic constitution?

Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage?

What is Down's syndrome? Give its symptoms and cause. Why is it that the chances of having a child with Down's syndrome increase if the age of the mother exceeds forty years?

- Physical, psychomotor and mental development is retarded.
- Palm is broad with characteristic palm crease, these symptoms show....