A disease caused by the presence of two recessive mutant genes on an autosome. 由于常染色體上出現突變基因而導致的疾病。
And the haplotype that includes the mutated gene will likewise get whittled down with each subsequent recombination. 每一次染色體重組，包含了突變基因的單純型也會(huì )越來(lái)越短。
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