The term micro and macro environment was given by___________________?
A. Robinson (1948) B. Lemer (1954) C. Perkins (1971) D. Comstock and Moll (1963)
Plant Breeding and Genetics MCQs
Discriminant function of plant selection was suggested by____________________?
A. Smith (1936) B. Yates (1947) C. Griffing (1956) D. Kempt Horne (1957)
Pure line theory was developed by_______________?
A. Thoday (1960) B. Mather (1951) C. Allard (1957) D. Johannsen (1903)
High values of genetic advance are indicative of____________________?
A. Dominance gene action B. Additive gene action C. non-additive gene action D. Partial dominance gene action
Who coined the term genetic flexibility and phenotypic flexibility___________________?
A. Hardy (1908) B. Thoday (1953) C. Salisbury (1940) D. Muller (1950)
Concept of combining ability as measure of gene action was first proposed by___________________?
A. Sprague and Tatum (1942) B. Cavalli (1952) C. Mather (1956) D. Wright (1951)
In half diallel, total crosses among parents are equal to___________________?
A. P (P-1)/2 B. P (P-1) C. P (P+1)/2 D. P2
Estimation of correlation form error variances and covariance’s is________________?
A. Genotypic correlation B. Phenotypic correlation C. Simple correlation D. Environmental correlation
Ratio of genotypic covariance to the phenotypic covariance is____________________?
A. Heritability (b.s) B. Genetic gain C. Co-heritability D. Genetic advance
Jumping gene was first discovered in______________________?
A. Maize B. Barley C. Oenothera D. Sorghum