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In the 1970s reboot of Wonder Woman, the white-skinned Diana has a black-skinned twin sister named Nubia, who was kidnapped at birth by Ares and is historically DC Comics' first black superheroine. Though Nubia's story has been retconned over the years since her first appearance, her original identity as Diana's fraternal twin sister was retold ...
In human genetics, the Mitochondrial Eve (more technically known as the Mitochondrial-Most Recent Common Ancestor, shortened to mt-Eve or mt-MRCA) is the matrilineal most recent common ancestor (MRCA) of all living humans. In other words, she is defined as the most recent woman from whom all living humans descend in an unbroken line purely ...
If the mother is not a carrier, no male children of an affected father will be affected, as males only inherit their father's Y chromosome. [ citation needed ] The incidence of X-linked recessive conditions in females is the square of that in males: for example, if 1 in 20 males in a human population are red–green color blind , then 1 in 400 ...
Sister chromatids are by and large identical (since they carry the same alleles, also called variants or versions, of genes) because they derive from one original chromosome. An exception is towards the end of meiosis, after crossing over has occurred, because sections of each sister chromatid may have been exchanged with corresponding sections ...
A biological mother is the female genetic contributor to the creation of the infant, through sexual intercourse or egg donation. A biological mother may have legal obligations to a child not raised by her, such as an obligation of monetary support. An adoptive mother is a female who has become the child's parent through the legal process of ...
A mother and daughter are sharing how and why people think they're sisters.. California native Kelly Cantu, 40, and her daughter Madison, 20, claim they're often mistaken for being sisters.
Anthropologists (such as C. Loring Brace), [79] philosopher Jonathan Kaplan and geneticist Joseph Graves [80] have argued that while it is possible to find biological and genetic variation roughly corresponding to race, this is true for almost all geographically distinct populations: the cluster structure of genetic data is dependent on the ...
The human twin birth rate in the United States rose 76% from 1980 through 2009, from 9.4 to 16.7 twin sets (18.8 to 33.3 twins) per 1,000 births. [5] The Yoruba people have the highest rate of twinning in the world, at 45–50 twin sets (90–100 twins) per 1,000 live births, [6] [7] [8] possibly because of high consumption of a specific type of yam containing a natural phytoestrogen which may ...