Agriculture MCQs

2794 MCQs  (Page 117 of 280)

Genetic male sterility is controlled by_________________?
A. Allelic genes
B. Non alleleic genes
C. Nuclear genes
D. All the above
Cytoplasmic genetic male sterility was first discovered by___________________?
A. Jones and davies (1944)
B. Devaries and correns (1900)
C. Bruce and keeble (1908)
D. Nilson (1900)
RELP’s, RAPD are helpful in___________________?
A. Gene sequencing
B. Gene mapping
C. Identify new gene
D. All the above
Prepotency increase with increase in_______________?
A. Hetrozygosity
B. Homozygosity
C. Homogeneity
D. All the above
Concept of disruptive selection was first developed by__________________?
A. Grafius (1965)
B. Mather (9153)
C. Thoday (1960)
D. Falconer (1960)
Homozygous population include_________________?
A. Inbreed lines
B. Multi lines
C. Pure lines
D. All the above
Convergent improvement was proposed by________________?
A. Jones (1920)
B. Richy (1920)
C. Hays (1919)
D. East (1920)
Reciprocal recurrent selection was proposed by___________________?
A. Hays and limner (1950)
B. Constock et al (1949)
C. Allard (1955)
D. Hull (1935)