Home Board Paper Solutions Text Book Solutions Articles NCERT Exemplar Solutions

Class 12th Biology 2015 Set1 Delhi Board Paper Solution

Question 17

Enlist the steps involved in inbreeding of cattle. Suggest two disadvantages of this practice.


Superior Female: It is the cow or buffalo that produces more milk per lactation. ​ Superior Male: It is the bull that gives rise to a superior progeny as compared to other males. The steps involved in the inbreeding of cattle are as follows:

Superior males and superior females of the same breed are identified and are made to mate in pairs.​ The progeny obtained is evaluated and superior males and females among them are identified for further mating.​

Following are the two disadvantages of the process of inbreeding:

Continuous inbreeding among cattle causes inbreeding depression. It decreases the fertility and also the productivity of an animal.