Create your own baby! Name: ________________________________ Partner’s Name: _____________________ Part A: Your baby’s traits 1) You will be creating your own baby, but your baby’s traits are totally dependent on you and your partner’s traits. To determine the traits, you will receive 2 coins. One coin will be for you, and the other will be for your partner. The class will be separated into couples where each partner has one coin, but if there are not enough males or females, then the couple will decide who will be the male/female of the couple. 2) Each parent will flip 1 of the 2 coins. If the coin lands (HEADS) then it represents dominance, while landing a tail will represent recessive. Record the results in the table below and write out the phenotype (the physical feature). Trait Male Female Genotype Phenotype Face shape C c C c Eye shape E e E e Hair Style H h H h Smile S s S s Ear style V v V v Nose style N n N n Eye colour B b B b Face colour F f F f Hair length L l L l Hair curliness R r R r Freckles F f F f Nose colour O o O o Ear colour W w W w Part B – Sex of the child To determine the sex of your child, only the male will flip the coin to determine if it has an x or y chromosome. In order to become a male, the chromosomes of the child will be x or y, while a female will just have x and x chromosome. Sex Female X Male X Y Genotype Phenotype Part C: Create your child. Name of child: _______________________________ Face traits Face shape C – Oval c -­‐ Circle Eye shape E – circular eyes e – triangle eyes Hair style – Smile – H – Justin Bieber hair style S – big smile h – mullet s – small smile Ear style – Nose style V – attached ear lobes N – small nose v – detached ear lobes n – big nose Eye colour B – Brown b – blue Face colour F – Green face f – Orange face Hair curliness Hair length R – Straight hair L – long hair r – Curly hair l – short hair Freckles Ear colour F – no freckles W – Pink f – freckles w – blue Nose colour O – orange o – blue 1. How does your baby compare to others? Pick two other babies and compare each of the following traits. Trait My baby Baby by ____________ Baby by _____________ Face shape Eye shape Hair Style Smile Ear style Nose style Eye colour Face colour Hair length Hair curliness Freckles Nose colour Ear colour Answer the following questions with all the babies of the class. Use a separate piece of paper for the following: 2. Which baby has the most dominant traits? a. How many? 3. Which baby has the most recessive traits? a. How many? 4. What is the probability that a baby will have a green face? __________________% 5. How many babies have a green face? 6. What is the probability that a baby will have freckles? __________________% 7. Why did you only need to flip the male parent coin to determine the sex of your baby? 8. How would the baby’s face shape change if one of the parents were homozygous dominant for all the traits while the other was heterozygous? 9. How would the baby change if one of the parents were recessive for all the traits while the other was heterozygous? 10. Uncle Smiley, who is heterozygous for a yellow face, married a woman with a green face. Both of them have always wanted a large family! If they were to have 12 children, what is the probability that the children would have yellow faces? How many would have green faces? Create a Punnett square to help you find your answers. 11. Baby Smiley has curly hair, but neither of her parents do! Is this possible? Create a PUnnett Square to help find the answer.