Question

The practice of mating of animals within the same breed, but have no common ancestors on either side of the pedigree for 4-6 generations is

• A. Out crossing
• B. Cross breeding
• C. Line breeding
• D. Close breeding

Hint:

Outcrossing = avoid common ancestors; line-breeding = mild inbreeding to retain traits; cross-breeding = different breeds.

Answer 1

The Correct Option is A

• Out-crossing is mating within the same breed but purposely avoiding close ancestors for several generations (no common ancestors for several generations) to maintain vigour.
• Line-breeding and close-breeding imply controlled relatedness; cross-breeding refers to mating between different breeds.
• Therefore the correct term is Out crossing — option (1).