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Which chromosomes are subtelocentric or acrocentric? A new karyotype symmetry/asymmetry index
- Eroğlu, Halil Erhan
- Caryologia 2015 v.68 no.3 pp. 239-245
- Cetacea, chromosomes, humans, karyotyping
- Karyotype asymmetry is well known in karyological studies of plants; however, there is no calculation of karyotype symmetry/asymmetry in other organisms. This study introduces a new formula (S/A I) for the measurement of the karyotype symmetry/asymmetry index. The main questions investigated are as follows. (i) Why is the new karyotype symmetry/asymmetry formula necessary? (ii) Which chromosomes are subtelocentric or acrocentric? (iii) What are the limits of symmetry/asymmetry according to the new formula? (iv) Is the human karyotype symmetrical or asymmetrical? In addition, the symmetry/asymmetry index is applied to the species and families of Cetacea as an example.