Studiul realizat de oamenii de ştiinţă a fost publicat în revista americană Science, şi a arătat că genomul calului prezintă o înrudire cu al altor mamifere, dar în special cu cel al omului.
Astfel, 17 dintre cei 32 de cromozomi cabalini sunt asemănători celor umani, iar caii pot contracta peste 90 de maladii ereditare având asemănări majore cu cele umane.
Mărimea genomului calului este de 2,7 miliarde de „litere” – molecule care alcătuiesc ADN-ul -, fiind puţin mai mare decât genomul câinelui domestic şi puţin mai mic decât cel al omului (2,9 miliarde de litere).
Analiza estimează la aproximativ 20.000 numărul genelor care codifică proteinele în organismul calului. Aproximativ 17.000 dintre ele sunt similare cu cele ale omului, şoarecelui şi câinelui, au spus autorii studiului.
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