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The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Color blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise. | The traits mentioned by Cueball and Megan are all genetic traits which can be traced using Punnett squares. That said, at least two of the traits (green eyes and color blindness) are not traits determined by a simple single-gene interaction. {{w|Color blindness#Genetics|Color blindness}} can be inherited, although there are a significant number of genes that can factor into various types of color blindness. Red green color blindness, the most common variety, is sex linked to the X chromosome. Because of the way X chromosomes are passed, if Cueball's mother was colorblind then Cueball would be, though his faulty X chromosome could only be passed to a daughter who would need another faulty X from her mother to inherent colorblindness. Once thought to have fairly simple genetic factors, eye color is now known to be a factor of at least 15 different genes with almost any parent-child combination possible. Red hair is still believed to be a recessive trait associated with a small number of genes (perhaps even one gene), although other traits once thought to be determined by only one gene have since been proven otherwise. | ||
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==Transcript== | ==Transcript== |