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Month: March 2019

Ratio of genotypic covariance to the phenotypic covariance is____________________?

August 31, 2021March 30, 2019 by admin
Ratio of genotypic covariance to the phenotypic covariance is____________________?

A. Heritability (b.s)
B. Genetic gain
C. Co-heritability
D. Genetic advance

Categories Agriculture Mcqs, Plant Breeding and Genetics

Estimation of correlation form error variances and covariance’s is________________?

August 31, 2021March 30, 2019 by admin
Estimation of correlation form error variances and covariance’s is________________?

A. Genotypic correlation
B. Phenotypic correlation
C. Simple correlation
D. Environmental correlation

Categories Agriculture Mcqs, Plant Breeding and Genetics

In half diallel, total crosses among parents are equal to___________________?

August 31, 2021March 30, 2019 by admin
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

Categories Agriculture Mcqs, Plant Breeding and Genetics

Concept of combining ability as measure of gene action was first proposed by___________________?

August 31, 2021March 30, 2019 by admin
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)

Categories Agriculture Mcqs, Plant Breeding and Genetics

Who coined the term genetic flexibility and phenotypic flexibility___________________?

August 31, 2021March 30, 2019 by admin
Who coined the term genetic flexibility and phenotypic flexibility___________________?

A. Hardy (1908)
B. Thoday (1953)
C. Salisbury (1940)
D. Muller (1950)

Categories Agriculture Mcqs, Plant Breeding and Genetics

High values of genetic advance are indicative of____________________?

August 31, 2021March 30, 2019 by admin
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

Categories Agriculture Mcqs, Plant Breeding and Genetics

Pure line theory was developed by_______________?

August 31, 2021March 30, 2019 by admin
Pure line theory was developed by_______________?

A. Thoday (1960)
B. Mather (1951)
C. Allard (1957)
D. Johannsen (1903)

Categories Agriculture Mcqs, Plant Breeding and Genetics

Discriminant function of plant selection was suggested by____________________?

August 31, 2021March 30, 2019 by admin
Discriminant function of plant selection was suggested by____________________?

A. Smith (1936)
B. Yates (1947)
C. Griffing (1956)
D. Kempt Horne (1957)

Categories Agriculture Mcqs, Plant Breeding and Genetics

The term micro and macro environment was given by___________________?

August 31, 2021March 30, 2019 by admin
The term micro and macro environment was given by___________________?

A. Robinson (1948)
B. Lemer (1954)
C. Perkins (1971)
D. Comstock and Moll (1963)

Categories Agriculture Mcqs, Plant Breeding and Genetics

Concept of triple test cross of analysis was developed by____________________?

August 31, 2021March 30, 2019 by admin
Concept of triple test cross of analysis was developed by____________________?

A. Kearsey and Jinks (1960)
B. Mather (1949)
C. Anderson (1957)
D. Fisher (1960)

Categories Agriculture Mcqs, Plant Breeding and Genetics
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