Homozygous purelines in cattle can be obtained by :

Q. Mating of two closely related individuals within the same breed is called

Q. A few statements are given below followed by a set of terms in a box. Pick the correct term and write it against the appropriate statement
a. Mating of closely related individuals within the same breed
b. Mating of animals of same breed but having no common ancestors on either side for 4-6 generations
c. Mating of animals of two different species
d. Breeding of animals belonging to different breeds.

(i) Cross breeding, (ii) Inter-specific hybridization, (iii) Out breeding, (iv) Out crossing, (v) Inbreeding

Q. Which of the following statement(s) is/are correct?

(i) Out-breeding is the breeding of unrelated animals which may be between individuals of the same breed but having no common ancestors for 4 - 6 generations or between different breeds or between different species.

(ii) Cross breeding allows the desirable qualities of two different breeds to be combined.

(iii) In interspecific hybridisation, male and female animals of two different but related species are mated.

Q. The process of mating between closely related individuals is

Q. Which of the following explains that structural differences prevent mating between individuals of different groups?