( 3 ) the chromosomes obtained by air - drying and chromosomes from the silkworm genital gland are similar in shape . but the numbers and the length of the chromosomes are obviously different . the chromosomes obtained from the genital gland have little difference in length , while the chromosomes of bmn cell are different in length very much 但是，在染色体的数目上有显著的差异。另外，染色体间的长短差别也非常明显。由家蚕生殖腺得到的减数分裂中期染色体和胚胎得到有丝分裂的中期染色体，其染色体长短差异不明显，而binn细胞的中期染色体长短非常不一致，差异非常显著。
您当前位置：