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The seven macrochromosomes of the chaffinch (Fringilla coelebs L.) are described in their lampbrush form. The relative lengths of bivalents, the positions and arrangements of chromosomal regions with lateral loops of similar length and appearance, as well as the positions of protein bodies and loops of peculiar morphology have been defined and mapped, so that each of the seven lampbrush macrobivalents...
Chromosome painting probes specific for macrochromosomes 1, 2, 3, 4, 5, and Z were applied to both mitotic and lampbrush chromosomes of the chicken (Gallus gallus domesticus). Five autosomal macrobivalents and sex chromosome Z in the lampbrush phase were identified and their correspondence to the target chromosomes in the metaphase of mitosis was shown. Nascent transcripts on lateral loops of the...
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