Ncert Exercises & Solutions

Q.67 Discuss briefly how pure lines are created in animal husbandry.

When breeding is between animals of the same breed, itis called inbreeding. If we want to

evolve a pureline in any animal, inbreeding (tor 4-6 generation) is necessary. It also helps

in accumulation of superior genes and elimination of less desirable genes by increasing

homozygosity.