PICTURE OF THE DAY: TWINS GENETIC DERMAL RE-ASSORTMENT --------------------------------- The two girls you see in this photo are twins. The Sunday Telegraph is calling this a “million-to-one medical miracle.” Statistically, this is one in 500 occurrences in twin birther and a chance of one in 50 twins birth among mix raced couples or people with multi-ancestral history. This is perhaps a very unusual occurrence. But might be seen a medical miracle. Fifty years ago these twin births were almost unheard of, but with the number of interracial relationships increasing, so too are the number of cases. These girls are just like any other sibling pair because they are non-identical, born of two different fertilized eggs. That their mother has mixed parentage makes it even more likely for them to inherit a mixture of different genes that determine skin color. As a matter of fact, their five-year-old sister Taylah has blue eyes, blonde hair, and light olive complexion. Sort of in the middle of the spectrum for the family. In the process of meiosis when egg cells are formed in the mother, a random selection of genes will be allocated to each egg. The set of chromosomes in each egg cell is unique. We’re focusing on the twins’ mother here because the father is assumed to have a homogenous set of genes for white skin color. Genetics experts say that in most cases a mixed-race woman’s eggs will be a mixture of genes for both black and white skin. However, much more rarely, the eggs may contain genes for predominantly one skin color. Genetically a mixed race and European couple, who are expecting twins, have about a one in 500 chance that the babies will have different skin colours. OTHER NOTABLE OF THIS TWINS GENETIC DERMAL RE-ASSORTMENT ARE - Other occurrences of this genetic dermal hue included the 1. Black and White Twins Layton and Kaydon Richardson. 2. A mixed-race British mom, Kylie Hodgson, gave birth in 2005 to twins, one of each — one black (boy), the other white (girl). 3. Shirley Wales, who lives in West Yorkshire, 2011, is mixed race woman and the father of her twins is white. Her son Leo has black skin and her daughter Hope, has white skin. She was adopted when she was four years old, and her birth mother is Afro-Caribbean and her British birth father was white. Her DNA tests revealed that, genetically, she was exactly 50% African and 50% European. 4. Natasha Knight, born to a mother of Jamaican-English descent and a father of German descent, gave birth to a set of twins in May 2006, and they were named - Alicia and Jasmin Singerl. These twins looked different Their mother, Natasha Knight says: “When they were born you could see there was a color difference straight away. We couldn’t believe it. Alicia’s eyes were brown and her hair was dark. Jasmin’s eyes were blue and her hair was white – you could hardly see her hair or her eyebrows.”
Posted on: Wed, 13 Aug 2014 02:06:26 +0000
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