I think there is some research that IQ is inherited, but is it inherited more from the father, or mother, or both?
Both. The Independent article used a blog post as its main source. The blog post (which is no longer online) claimed to rely on a doc (scientific document) that actually hardly supports its main assertion. What that doc actually found was that there are 41 genes on the X chromosome associated with mental retardation, and none on the Y chromosome, and many (but well under 41) such genes on each of the other 22 chromosomes. These autosomes had a total of 180 such genes. (My source for the doc) The doc then goes on to make a bunch of conclusions based on "assuming that these  genes are responsible for the development of general intelligence or cognitive abilities (‘g’ according to Plomin)", but this is a totally unwarranted assumption in my view. Oh, and the doc is in the Opinion section, so it's probably NOT peer-reviewed, which is why I call it a doc rather than a paper.