Abstract:

Abstract: The karyotpe of Lacerta vivipara from Daxinganling, Heilongjiang Province, was studied by using medulla cells colchicine-hypotonic air-drying technique. The results showed that the number of diploidy chromosome of males was 36 (2n=34+ZZ), and sex chromosome was the type of ZZ, while in females, they were 35 (2n=34+W) and W. The sex determination mechanism depends on sex chromosomes. All of chromosomes of males and females are telocentric except for females’ metacentric sex chromosome.