van de Flierdt K
Chromosoma. 1975;50(4):431-4. doi: 10.1007/BF00327078.
Feulgen cytophotometric measurements of neuroblasts in the first and third instar larvae of Drosophila melanogaster reveal the same DNA content for metaphases with chromosomes of different size. The total absorbance of all measured metaphases gives the four-fold value of that of the spermatids. Accordingly there seem to be no reasons to retain the assumption of a multistranded structure for the large chromosomes of metaphases in the third instar larvae.
对黑腹果蝇一龄和三龄幼虫中的神经母细胞进行福尔根细胞光度测量,结果显示,具有不同大小染色体的中期细胞的DNA含量相同。所有测量的中期细胞的总吸光度是精子细胞总吸光度的四倍。因此,似乎没有理由保留关于三龄幼虫中期大染色体具有多链结构的假设。