244 PRINCIPLES OF POULTRY BREEDING 



6. Enumerate some of the problems which are confronting the poultry breeder. 



7. What is the basis of value in poultry? 



8. Enumerate and discuss six fundamental principles which underlie pro- 



gressive breeding. 



9. Define three fundamental factors which affect all individuals in greater 



or less degree. 



10. Discuss environment and its relation to all progeny. 



11. Discuss the eflfect of functional activities upon the individual and its 



olTspring. 



12. State briefly the development of the laws of breeding. 



13. Define the law of heredity and give a practical example. 



14. Discuss three direct benefits to be derived from the action of this law. 



15. Define crossbreeding or hybridizing. 



16. What is the first assertion of Mendel's law? 



17. Discuss the influence of a dominant character when a cross is made 



Explain with equation, according to Mendel's law. 



18. Explain procedure in testing an individual to determine its purity of 



breeding. 



19. Define fecundity. 



20. Outline two views now held as to the transmission of fecundity. 



21. Enumerate five points which cover the practical application of the teach- 



ing of inheritance of egg production. 



22. Define the law of variation. 



23. Enumerate, define, and give examples of four distinct types of variations. 



24. What is a mutation? Give an example. 



25. Define atavism. 



26. Name three factors which influence reversion. 



27. Define the law of correlation. 



28. Exemplify by comparing the body characteristics of the fowl with egg 



production 



29. Define prepotency; give example. 



