Genetics: Color mutation - Recessive.
遗传学：彩色突变-隐性。
The first remarkable color mutation was a white chinchilla born in 1955 in North Carolina.
第一个显着的颜色突变白色龙猫出生于1955年在北卡罗莱纳州。
Researchers believe redheads are more sensitive to pain because of a mutation in a gene that affects hair color.
研究者认为红发对于疼痛更敏感因为决定其发色的基因发生了变异。
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