ARS Mains Examination Previous Year Question Paper GPB - 2015

1. Differentiate between male sterility and self incompatibilities? Describe various types of male sterility systems?

2. Define vertical and horizontal disease resistance? Describe and differentiate the VR and HR through different parameters.

3. Define scaling test? Describe importance of scaling test in crop improvement in plant breeding?

4. What is molecular marker? Describe molecular markers role in plant breeding in crop importance?

5. Define genotype environmental interactions? How is G × E interaction important in crop improvement.

6. Define combining ability? Define its genetic basis and method for estimating SCA in diallel mating system?

7. Define recurrent selection? Define different types of recurrent selection and what is role of recurrent set and explain SSCA.

8. Describe the role of plant protection variety and Farmer’s right in Indian seed order?

9. What is Bt cotton effect and prospects of Bt Cotton in India.

10. What is back cross? In what condition back cross utilized in crop improvement in plant breeding Define genetic basis of back crossing?

Part – A

1. Site of oxidative electron transport in cell is : Mitochondria

2. Growing of plant in soil less nutrient solution is referred as : Hydroponics

3. Pollen germination requires which of the following element? : Boron

4. The main site of dark reaction of photosynthesis : Stroma and Site of Light reaction of photosynthesis : Grana

5. Which amino acid accumulates under water stress condition in plant : Proline

6. Examples of C3 Plants : Rice, Wheat, Potato

7. Examples of C4 Plants : Maize, Sorghum, Pearl Millet, Sugarcane

8. The precursor of Cytokinins is : Isopentenyl adenine

9. The precursor of ABA is : Violaxanthin

10. The precursor of Brassinosteroids is : Campesteroll

11. Guttation take place through : Hydathode

12. Pomato (A hybrid of potato and tomato) is produced by : Protoplasmic Fusion