Heterosis Breeding (GPB-507)

Answer all the questions

1. What are the conclusions we can draw from different civilizations on inbreeding and outbreeding? 5.00

2. Derive an expression to show the population mean after one generation of selfing 5.00

3. Discuss heterosis in natural population and finite population 4.00

4. Compare and contrast homozygous and heterozygous balance 4.00

5. Compare and contrast Alike in state and identical by descent 4.00

6. Discuss
   (a) Crossing techniques followed in sunflower 1
   (b) Pros and cons of hybridization in wheat 1
   (c) Steps involved in producing tomato hybrid 1
   (d) Floral biology, stigma receptivity, pollen fertility and fruit set in chilli 2
   (e) Step in three line breeding system in rice 3
   (f) TPS 1.3
   (g) Different male sterility types and their utility in maize breeding 3

7. Discuss the contributions of (i) Shull 4 (ii) Darwin 5 (iii) Camerarius 4 (iv) Joseph Koelreuter 4

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