Chromosome morphology of Berari goats with special reference to mitotic drive and mitotic index

The chromosome morphology of Berari goat of Vidarbha region of Maharashtra was studied. The chromosomal compliment of Berari goat consisted of diploid chromosome number 2n=60. All the autosomes were acrocentric, X chromosome was identified as the second largest chromosome and Y chromosome was found to be smallest and metacentric. The mean mitotic drive in female was found to be 51.22±0.65 while in male it was 47.94±0.94. The mean mitotic drive irrespective of sex was found to be 49.58±0.61. The mean mitotic index in female was found to be 6.59±0.58 while in male it was 5.29±0.85. The mean mitotic index irrespective of sex was found to be 5.94±0.13.