Diff. between female and male chromosomes?

[G T Clark]

sjj at srcros1.pathology.ufl.edu (Song-Muh Jong) writes:

>Hello,

>I used to have an impression that human chromosomes are the simple 23 pairs. 
>However, the linkage maps of human chromosomes indicate that female maps are 
>larger than male maps. Can someone explain this phenomenon?

	Recombination happens at a higher frequency in the female. Why
this is the case, I don't know.

		G.