Y chromosome has two types of polymorphism : metacentric ( or submetacentric ) and acrocentric chromosomes.
染色体有中部 ( 或亚中部 ) 和近端着丝粒染色体.
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The haploid complement consisted of 11 metacentrie chromosomes and 1 submetacentric chromosome.
每一组由11个中部着丝点染色体和1个亚中部着丝点染色体组成.
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