1. Selection index which deals with improving a set of characters keeping the value of other character intact is called as
(i) General selection index
(ii) Classical selection index
(iii) Restricted selection index
(iv) Analytical selection index
2. Genetical gain (ΔG) in individual 'i', in classical selection index can be estimated as
ΔG = ( \sum b_i p_i )
Where,
(i) Relative economic importance of respective characters
(ii) Weighting coefficient of respective character
(iii) Phenotypic value of character of individual character
(iv) Genotypic values of individual characters
3. Which of the following statistical assumptions are associated with selection index?
(i) Indicates selection of parent for mating, and linear or additive nature of component characters
(ii) Absence of linkage and maternal effects
(iii) Absence of G × E interactions
(iv) Both (i) and (iii)
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