Note: There is currently no formal definition of
Theories regarding the inheritance of human intelligence are highly controversial, nevertheless, it's widely believed that various aspects of intelligence can, to some extent, be inherited.
Recent studies suggest that genes related to intelligence are predominantly located on the X chromosome. With the implication that a significant proportion of intelligence is passed on to male offspring from the maternal side, and to the female offspring from either (or both) the maternal and paternal side.
There is no explanation as to why the X chromosome seems to carry more intelligence-related genes.
Further info. X-linked genes and mental functioning Human Molecular Genetics, Volume 14, Issue supplement_1, 15 April 2005, Pages R27–R32
Ideas for new topics, and suggested additions / corrections for old ones, are always welcome.
If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !
Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.
( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)