Genetics

The science of heredity in organisms. The father of modern genetics was Gregor Mendel, an 18th century monk, who observed that specific cosmetic traits in the parents are inherited by the offspring. Mary-Sues sometimes use this science to create speshul powers, or heritages for themselves, not realising that it is actually genetically impossible.

Sueish Genetics

 * Half [insert magical creature]/ half human.


 * Weird and wonderful eye/hair colours.


 * Sue-per powers, inherited from a parent.

Charges
Genetic impossibilities or improbabilities is a serious charge for some, more scientifically minded agents. Others may quibble that it is all bad biology, which can also be a charge.

Exceptions
If having strange hair and eye colours is canonically possible (as it may be in many anime and game fandoms) this is not considered a charge by itself, but must be supported by other charges. Having blue hair is fine, but having 'luscious aquamarine locks that flowed like a silk waterfall past her knees' would be.