A genetist from Oxford has many books out on human evolution, and unfortunately tries to tread in sociology without much success. I recently read "Adam's Curse" and "Seven Daughters of Eve", stories of tracking down our maternal and paternal ancestry using mitochondrial DNA and the Y-chromosome. Couple questions arise in my mind:
1. Humans have 46 chromosomes - did we already lose a pair (compared to our ape brethren who have 48), because we exhausted and destroyed the function of one sex chromosome already?
2. Sykes' hypothesis based on genetics on homosexuality is that at least homosexual males are more helpful with raising his sisters... I don't see how...
3. If a man has an older brother, this person is more likely to have homosexual orientation. The biochemical argument sounds plausible, but can we really separate the effects of the environment?
4. If these theories are true, how do we see them in the light of the Theology of the Body? Did Adam not have to deal with the decaying Y-chromosome before the fall? Where the Y-chromosome and the mitochondrial DNA at peace?
Contemplating...
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"Share the fruits of contemplation" is the name of this blog, where I hope to share something useful to someone.
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