A. Anenploidy
B. Euploidy
C. Trisomy
D. all the above
Plant Breeding and Genetics
A nullisomic individual is represented by…………….?
A. 2n-1
B. 2n+1
C. 2n-2
D. 2n+2
Colchicum () is extracted from………………?
A. Seed
B. Bulb
C. Fruit
D. Flower
Out breeding leads to reproduction in………………..?
A. Heterozygosity
B. Homozygosity
C. Population mean
D. None of the above
Heterosis can be fixed by……………….?
A. Apomixis
B. Polyploidy
C. Asexual reproduction
D. All the above
Heterosis can be fully exploited in the form of…………………?
A. Composites
B. Hybrids
C. Multi lines
D. Synthetics
Top cross was first suggested by………………?
A. Simmonds (1979)
B. East (1908)
C. Davenport (1908)
D. Davis (1927)
The term useful heterosis was first used by………………?
A. Meredith and Bridge (1972)
B. Richey (1914)
C. Jenkins (1935)
D. Hull (1950)
In maize source of high lysine is……………….?
A. Opaque 2
B. Proline
C. Gang as
D. African tall
In cereals limiting amino acids are…………….?
A. Threonine
B. Lysine
C. Methionine
D. a and b