Biol. Bull.
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Biol Bull 18: 50-65. (December 1909)
© 1909 Marine Biological Laboratory
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THE HEREDITY OF EYE COLOR AND HAIR COLOR IN MAN

S. J. HOLMES and H. M. LOOMIS

1. In the inheritance of the color of hair and eyes, the more pigmented condition tends to be dominant over the less pigmented.

2. Crosses of more darkly pigmented types produce a number of dark types as well as a number of lighter ones, but crosses of the lighter types rarely produce darker ones.

3. Inheritance of eye color and hair color, although partly alternative, conforms to a certain extent to the blended type.

4. There is a certain amount of evidence that the pigmentation of eyes and hair may exceed that of both parents, especially when both parents are pigmented to the same degree.

5. Dark hair may be associated either with dark eyes or light eyes, but light hair does not occur along with darker eyes.

6. Correlations of hair color and eye color are not strongly inherited.






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