Topic: Animal Genetics & Breeding

The fraction of all the alleles that occur at a given locus in a specified population is known as:

Polygenic inheritance is primarily governed by which type of gene action?

What is the increasing order of efficiency of the three main methods of selection for multiple traits?

In which type of selection is only one trait selected at a time?

Which evolutionary force changes gene frequency the fastest?

Match the column: TABLE-I TABLE-II 1) Selection Index a) Most accurate aid to selection 2) Progeny testing b) Best aid to selection for carcass traits in sheep 3) Individual selection c) Most efficient aid to selection 4) Sib selection d) Most efficient method of selection

Match the column: TABLE-I TABLE-II 1) Inbreeding a) New breed is evolved 2) Outbreeding b) Pure-bred is obtained 3) Panmixia c) Mating of related individuals 4) Grading up d) Random mating 5) Cross breeding e) Mating of unrelated individuals

Which evolutionary force changes gene frequency the slowest?

Match the column: TABLE-I TABLE-II 1) Osborne index a) Best method of selection 2) Sire Index b) For selection of pullets & cockerels 3) Abplanalp Index c) For improving egg production in poultry 4) BLUP d) Index of genetic worth of sire 5) Selection Index e) Most powerful method of indexing sire

Match the column: TABLE-I TABLE-II 1) Close breeding a) Less intensive form of inbreeding 2) Line breeding b) Simplest form of out breeding 3) Species hybridization c) More intensive form of inbreeding 4) Out-crossing d) Breed complementation 5) Cross breeding e) Farthest form of out breeding