lampbrush chromosome

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Related to lamp-brush chromosome: Polytene chromosome, B chromosome

lamp·brush chromosome

 (lămp′brŭsh′)
n.
A large chromosome found especially in the immature eggs of amphibians, consisting of two long strands that form many brushlike loops along the main axis of the chromosome.

lampbrush chromosome

(ˈlæmpˌbrʌʃ)
n
a chromosome with looped projections resembling a brush