“Can you ‘splain more about the Rh- and 24-23 chromosome thing?”
All primates and monkeys have a protein marker on their blood cells called the Rh marker. RH stands for RHesus monkey within which we first discovered this protein blood marker. Having Rh positive or Rh negative blood affects the success of blood transfusions because your immune system will reject the opposite blood type.
For some reason, 15% of humans don’t have the Rh blood marker so we label them as Rh-. A good amount of these people are white Europeans and many of them do have blue eyes. The mysterious Basque people of northern Spain have the highest percentage of Rh- blood (about 27%). They also claim to be descended from Atlanteans. Of course, blue eyes are also another strange genetic variation in an animal that used to spend all its time outside. I have blue eyes and it sucks because without sunglasses the summer sun hurts my eyes and I have a higher chance of getting cataracts.
Anyhow, Rh+ or Rh- blood can be harmful to the health of a pregnant woman and child if the child has the opposite of the mother. From an evolutionary perspective, it doesn’t make sense for Rh negative blood to exist. No one has explained the benefits of it and we definitely know that it impacts reproductive health. Before we had modern medical interventions for the Rh pregnancy problem, a constant number of women or children would simply die during gestation of Rh blood type incompatibility.
What about the missing chromosome, you ask… All other primates besides humans have 24 pairs of chromosomes. But for no good reason at all, suddenly some hominoids popped up with 23. Two pairs of primate chromosomes became chromosome pair number two in humans for no good reason whatsoever.
However, in my opinion, the most important human genetic anomaly is the great variety and commonality of prepubescent genetic disorders in human children. When a genetic disorder ends up killing a child, that child cannot directly pass on its genetic disorder. Yet these genetic disorders in humans persist in a deeply flawed human genome. We don’t see this wide variety of genetic disorders in wild animals. However, in domesticated animals like cats and dogs we do see a somewhat greater variety of genetic disorders. Why do domestic animals have these disorders? Because of human intervention in their breeding. When we over-select for certain traits, we can end up with something like the pug, a dog that can’t breathe properly due to its overly short face. Human intervention in the breeding of domestic animals created some of their genetic problems.
So did some type of intervention into human DNA end up leaving us with a deeply flawed genome? Are we allowed to ask that question?
If you do a Google or a Bing search on these topics there’s quite a bit of information about them. Despite the fact that information on these topics exists, we rarely hear about them in school. It's because they don’t want us really understanding who we are.
It is the same reason they must cover up existence of Bigfoot. Once we understand who Bigfoot are, we will have a much better understanding of who we are.
Also, while great apes all have 48 chromosomes (24 pairs), humans have only 46 (23 pairs). How does a species lose TWO ENTIRE CHROMOSOMES (1 pair) and come out better? Things humans have (with 23 pairs) that the primates don't have (with 24 pairs): Speech, walk upright, higher reasoning skills, music, literature, agriculture, civilization....and the list goes on.
“We lose chromosome, why brain get bigger?
One less chromosome pair in head means more room for brain to grow.
It make sense to me.”
-Grog the Neanderthal anthropologist