1. Who Gets the Cabbage? Designer Cabbage © Mobile Area Education Foundation 20111 Cabbage White Butterfly

2. Steps in Selective Breeding 1.Decide which traits are important. 2.Choose parents that show these traits and breed them. 3.Select the best offspring from the parents to breed the next generation. © Mobile Area Education Foundation 20112

3. Do you remember this? The letters represent alleles which make up genes. Genes give the cabbage its specific traits. The letters represent alleles which make up genes. Genes give the cabbage its specific traits. Capital letters represent dominant traits. If an offspring inherits even one of these alleles it will display that trait. Capital letters represent dominant traits. If an offspring inherits even one of these alleles it will display that trait. Lowercase letters represent recessive traits. An offspring will not show a recessive trait unless it inherits two recessive alleles. Lowercase letters represent recessive traits. An offspring will not show a recessive trait unless it inherits two recessive alleles. © Mobile Area Education Foundation 20113

4. Punnett Squares © Mobile Area Education Foundation 20114 On a notecard, draw this Punnett square. Complete the Punnett square to show the possible gene combinations for the offspring On a notecard, draw this Punnett square. Complete the Punnett square to show the possible gene combinations for the offspring. D = Dark colored cabbage d = Light colored cabbage

5. Probability 1.Number of combinations that will produce dark cabbage? 2.Number that will produce light cabbage? 3.Probability that offspring will be dark? 4.Probability that offspring will be light 4.Probability that offspring will be light? © Mobile Area Education Foundation 2011 5

6. 6 VD Vd vD vd Cabbage 1 Cabbage 2 Vd vd Dihybrid Punnett Squares

7. © Mobile Area Education Foundation 2011 7 VVDdVVddVvDd VD Vd vD vd Cabbage 1 Cabbage 2 Vd vd

8. © Mobile Area Education Foundation 20118 VVDd VVddVvDd Vvdd VVDd VVdd VvDd Vvdd VvDd Vvdd vvDd vvdd VvDd Vvdd vvDd vvdd VD Vd vD vd Cabbage 1 V d vd vd Cabbage 2

9. © Mobile Area Education Foundation 20119 VVDd VVddVvDd Vvdd VVDd VVdd VvDd Vvdd VvDd Vvdd vvDd vvdd VvDd Vvdd vvDd vvdd VD Vd vD vd Cabbage 1 V d vd vd Cabbage 2

10. © Mobile Area Education Foundation 201110 The probability of a Cabbage having both a dark color and being venomous is 6/16. We can express that as 3/8. We can also express that as 0.375