A single copy of a sickle cell gene helps the carrier survive malarial infection.
A single copy of a sickle cell gene helps the carrier survive malarial infection.
带有一个镰状细胞基因的人较能抵御疟疾感染。
A single copy of a sickle cell gene helps the carrier survive malarial infection.
带有一个镰状细胞基因的人较能抵御疟疾感染。