'Polled gene' diaporamas de présentation

HORNED AND POLLED (NO HORNS) Only 2 horn genes determine if a cow will be horned or polled .

POLLED (PP). POLLED (PP). RED (rr). POLLED (PP) 100%. POLLED (PP) 50%. POLLED (P h ) 50%. BLACK (B r ) 50%. BLACK (B r ). BLACK (B r ) 50%. BLACK (BB) 100%. BLACK (B r ) 50%. BLACK (BB) 25%. BLACK (BB) 50%. BLACK (B r ). BLACK (BB). POLLED (P h ). POLLED (PP).

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