Topic: Animal Refresher

The unit of selection in family selection is:

Genetic gain per year is dependent upon:

‘Resemblance between relatives’ is the basis of estimation of:

Repeatability is generally estimated by which statistical method?

Match the column: TABLE-I TABLE-II 1) Pleiotropy a) Increase heterozygosity 2) Linkage b) Increase homozygosity 3) Inbreeding c) Random mating 4) Out breeding d) Transient cause of genetic correlation 5) Panmixia e) Permanent cause of genetic correlation

Match the column: TABLE-I TABLE-II 1) In crossing a) Mating between unrelated animals of the same breed 2) In cross-breeding b) Mating of purebred (inbred) males with unrelated females 3) Out-crossing c) Crossing of two different inbred lines of the same breed 4) Top-crossing d) Crossing of two different inbred lines of different breeds 5) … Read more

Heterosis and Specific Combining Ability (SCA) are both caused by:

Genetic correlation between traits is due to:

Permanent genetic correlation between two traits is due to:

Match the column: TABLE-I TABLE-II 1) Euploidy a) 2N+N 2) Aneuploidy b) 2N-N 3) Monosomy c) 2N-2 4) Nullisomy d) 2N-1 5) Monoploidy e) Change in no. of chromosomes in a set 6) Triploidy f) Change in no. of sets of chromosomes