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Inbreeding.

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(1)Inbreeding is the mating of two closely related individuals within the same breed for 4 to 6 generations.(2)During inbreeding superior males superior females of the same breed are identified.The superior males and superior females from this progeny are identified and used for further mating.(3)Due to inbreeding homozygosity is increased and harmful recessive genes are exposed.Inbreeding is done when a pure line of an animal is expected.(4)Inbreeding helps in accumulation of superior genes and elimaination of harmful or less desirable gens.(5)Continued inbreeding usually reduces fertility and productivity.This is called inbreeding depression.
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Explore conceptually related problems

Fill up the blanks in the following paragraph by selecting the correct option. Inbreeding increase ul(i) . This inbreeding is necessary if we want to evolve a ul(ii) in any animal. Inbreeding exposes harmful ul(iii) genes that are eliminated by selection.

Assertion (A) : Continued inbreeding , especially close inbreeding , usually reduces fertility and even productivity . Reason (R) : Selected animals of the inbreeding population should be mated with unrelated superior animals of the same breed usually not helps in restoring of fertility and yield.

Study the following statements regarding inbreeding and select the incorrect ones. (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined. (ii) It increases homozygosity. (iii) It also helps in elimination of less desirable genes. (iv) Continued inbreeding increases fertility and productivity.

Go through the following statements regarding inbreeding and select the incorrect ones . (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined . (ii) It increases homozygosity . (iii) It also helps in elimination of less desirable genes . (iv) Continued inbreeding increases fertility and productivity .