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Question - What are A, B, C and D?

Genetics and breeding L.O. 1) Know the meaning of all the keys terms introduced today 2) Be able to predict the outcome of simple crosses (matings). A. D. C. B. Question - What are A, B, C and D? Choose from Offspring, Female sex cell (gamete), Male sex cell (gamete) and Fertilised egg.

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Question - What are A, B, C and D?

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  1. Genetics and breedingL.O. 1) Know the meaning of all the keys terms introduced today2) Be able to predict the outcome of simple crosses (matings) A D C B Question - What are A, B, C and D? Choose from Offspring, Female sex cell (gamete), Male sex cell (gamete) and Fertilised egg

  2. Match up 1. Stronger A. Homo- 2. Weaker B. Dominant 3. Same C. Hetero- 4. Different D. Recessive

  3. Predicting mating outcomes • Alice the cow is pure bred for brown hair . Brown hair is dominant. Her genotype is BB • Andrew the bull is pure bred for black hair. Black hair is recessive His genotype is bb What would be the outcome if Alice was mated with Andrew? B B b Bb Bb b Bb Bb • All offspring are Bb. This means they will have Brown hair. • QUESTION - What would happen if cattle that were both Bb were mated?

  4. Another example of predicting outcomes • Serena the sow was pink skin. This is recessive. What might her two genes be? PP, pp or Pp • Scott the boar has black skin. This is dominant. What might his genotype be? (There are two possibilities!) PP and Pp or pp and Pp TRY IT - Draw a punnet square for what would happen if Scott and Serena mated.

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