Chromosome XY Question?

J, g is correct. But I will tell you what my first thought on this "rib". Since it was not in the 70s as much known as knowing today how Protein Folding occurrs I had thought that as the protein comes out of the 'rib' it's even positional information of the chromosome could be "remotely" transferred to the folding shape by action at a distance over the meduim of gravity waves but rather than think of it exactly in terms of the chromosome as you have indicated and I had added speculatively to my thinking in the early 90s I was trying to make more than the less sense of Rupert Sheldrake's "morphic resonance". I have other speculations in this direction that have tended to confuse than illuminate here so I refrain from dredging up this memory much but thanks again for the poke at a peek so to seek.