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Class 12th Biology 2014 Set1 Delhi Board Paper Solution

Question 13

State the disadvantage of inbreeding among cattle. How it can be overcome?


Continuous inbreeding among cattle causes inbreeding depression. It decreases the fertility and, even, productivity of an animal. It can be overcome by applying outbreeding, in which mating is done between different breeds or individuals of the same breed but having no common ancestors. Outbreeding includes out-crossing, cross-breeding and interspecific hybridisation.