500 Organisms Are Prodi fcts of Heredity a?id Environment unit ix 



Fig. 450 The Jersey cow (left) mid the Brahvian bull (right) are the parents of the 

 calf between them. The cow is a good milk producer in cool clinmtes but does not 

 produce well in warm climates such as our southern states have. The bull thrives 

 in wari/i climates but cows of this breed are not good milk producers. ^Vhat 

 characters are the breeders tryijjg to combine in a new type? (u. s. department of 

 agriculture) 



— "TTW?-"-'?^ 



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Fig. 451 At the left is a Brahman bull, resistant to Texas fever. Note its physical 

 characteristics. At the right is the F^ res^ulting from a cross between Brahman and 

 Hereford cattle. Which of the physical characteristics of the Brahman were not 

 inherited by this F^? (nabours — Kansas agricultural college) 



