accessory chromosome


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accessory chromosome

[ak′ses·ə·rē ′krōm·ə‚sōm]
(cell and molecular biology)
References in periodicals archive ?
McClung (1899) described the meiotic behavior of what was for the first time called, 'accessory chromosome', in male Xiphidium fasciatum (Conocephalus fasciatus), a tettigoniid.
magna had 23 chromosomes, the unpaired element being the 'accessory chromosome', he was wrong in reporting 22 chromosomes in the female.