metacentric chromosome meaning in English

等臂染色体
等臂染体
中部着丝点染色体
中央着丝点染色体
中着丝粒染色体：着丝粒位于染色体的中部，两臂长度相近。

The first and second longest chromosomes are important in karyotype analysis and most of which are metacentric chromosome and submetacentric chromosome in lilium . hybrids were distinguishable by the existence and position of secondary constriction and arm ratio
百合的第一对和第二对染色体多为中着丝粒和近中着丝粒染色体，可以根据次缢痕有无与位置及臂比鉴定杂种。
In this paper , the genetic diversity of qinghai - lake naked carps was studied for the first time by methods of chromosome karyotype , protein ( isomzy ) electrophoresis and mtdna rflp . the results of chromosome karyotype indicated that : ? the diploid chromosome number of qinghai - lake nakked carp was 2n = 92 that comprised of 18 metacentric chromosomes , 18 submetacentric chromosomes , 16 telocentric chromosomes and 40 acrocentric chromosomes , and the karyotype formula was 18nvh8snvh6st + 40t , nf = 128
染色体核型研究结果表明；青海湖裸鲤染色体总数2n = 92条，由18条中着丝粒染色体、 18条近中着丝粒染色体、 16条近端着丝粒染色体和40条端着丝粒染色体组成，其核型式为： 18m + 18sm + 16st + 40t ， nf = 128 。