Heterosis Breeding (GPB-507)

I. Write on the mitochondrial heterosis with suitable evidences 5.00
II. Write on the models of gene-gene product interactions 5.00
III. Write a short note on the following 15.00
(a) Role of translocation heterozygote in fixation of heterosis
(b) Translation of heterosis through metabolic processes during plant growth
(c) Formulas to test types of heterosis
(d) FD and mean of D2 (x) known how can we classify the hybrids into diversity groups
(e) Prediction methods of double cross hybrids

IV. Discuss the N, S and NES types pistillate condition in castor 2.00
V. Discuss the evolution of Brassica species 2.00
VI. Mention any four okra hybrids with their salient features 1.00