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Chromosomal cytology has been most widely used by animal cytogeneticist rather than molecular biologist. The Karyotype of each individual species is characterized by chromosome numbers, size and morphology and it is a fixed and specific for each species. The number and shape of chromosomal banding can be determined by using various dissecting and staining techniques. Chromosomal taxonomy can be quite useful both in determining the phylogentic relationships of the taxa as well as in the detection of structural variation of cryptic species. The study includes physical mapping of chromosomes...

Efforts are being made at different places in India to record the performance of dairy animals. In view of the heterogeneous managemental practices among households under field conditions, the methodology developed and practiced for analysis of data under different conditions in other countries may not be exactly suitable for data under field conditions in India. Therefore, it is of primary importance to identify appropriate analytical models and methods to analyze the data on dairy animals managed under field conditions, so that genetically superior animals could be selected as breeding...