Starter B: Starter A: Unscramble and define the words. 1. griffonsp 2. hinteri 3. metages 4. leucin 5. oyezgt 1. Why do these two look the same? 2. Why does this tree look the way it does? Starter B: Starter A: Unscramble and define the words. 1. Offspring 2. Inherit 3. Gametes 4. Nuclei 5. Zygote 1. Because they are identical twin. 2. Effect of environmental variation 9Ab Inherited variation Hot Spice Mild • Identify a normal distribution in term of continuous and discontinuous variation. • Explain how sexual reproduction causes inherited variation. • Identify different type of inherited variation. Which step are you on? How do you get identical twins? SAME inherited genes from mother and father SO look the same! Are identical twins always the same? • THINK-PAIR-SHARE Show what you know! • For the following slides record whether the picture shows… • An environmental controlled characteristic • A genetically controlled characteristic • Or a characteristic controlled by BOTH environment and genes Complete the following table, then sort the pictures that follow Characteristic Scar Inherited Environmental Both Scar Eye colour Spoken language height Nose shape Earlobe attachment Blood group Sporting ability Progress check - Go to page number 8 and - answer the question number 1, 2 and 3. - Time : 5 min 9Ab Inherited variation Hot Spice Mild • Identify a normal distribution in term of continuous and discontinuous variation. • Explain how sexual reproduction causes inherited variation • Identify different type of inherited variation Which step are you on? Offspring parent inherit variation genetic fertilisation Offspring parent inherit variation genetic fertilisation The Mr Men Match. In your books write Mr Men Match activity Offspring parent inherit variation genetic fertilisation Meet our Mr Men And our Little Misses Now let's meet their children! Offspring parent inherit variation genetic fertilisation Offspring parent inherit variation genetic fertilisation Who do you think are her parents? Write the answers in your book. Who’s characteristics does the child show more off, the mother or the father? Offspring parent inherit variation genetic fertilisation Who do you think are his parents? Write the answers in your book. Who did the child inherit their smile from? Offspring parent inherit variation genetic fertilisation Who do you think are his parents? Write the answers in your book. What characteristic does their child share from both parents? Offspring parent inherit variation genetic fertilisation Who do you think are her parents? Write the answers in your book. Why might this child be harder to identify the correct mother at first? Offspring parent inherit variation genetic fertilisation Who do you think are her parents? Write the answers in your book. What has the child inherited from their father? Offspring parent inherit variation genetic fertilisation What did we learn from this? • Offspring get a mixture of characteristics from their parents. • We call that process inheritance. • If two parents have a certain characteristic, then their child may show it even more (e.g. Mr Small and Little Miss Tiny = Mr Very Small!) • Some things such as glasses, scars and muscles we get from our environment, they are not inherited. What characteristic on you are genetic and how do you know this? Offspring parent inherit variation genetic fertilisation Genetic information • The instructions that make up a plant or animal comes from their parents. • ½ comes from the sperm and ½ from the egg • These instructions are found in the nuclei of the cells. • In sexual reproduction, two gametes fuse during fertilisation to make a zygote. • The zygote has information from both parents. Where in a gamete is genetic information stored? 9Ab Inherited variation Hot Spice Mild • Identify a normal distribution in term of continuous and discontinuous variation. • Explain how sexual reproduction causes inherited variation • Identify different type of inherited variation Which step are you on? Offspring parent inherit variation genetic fertilisation Continuous and discontinuous Genetic information can be continuous of discontinuous. One example of discontinuous is blood groups you only have four options for blood group A, B, AB or O. There are not other ones that exist. What are other examples of discontinuous variation? Offspring parent inherit variation genetic fertilisation Continuous and discontinuous Examples of continuous inherited variation includes human height and skin colour. However like many characteristics these can also be affect by environmental factors. Characteristics that show a continuous variation usually give a ‘bell shape’ when you plot them on a bar chart. This is known as a normal distribution. We usually see this in continuous variation. Offspring parent inherit variation genetic fertilisation Continuous and discontinuous 9Ab Inherited variation Hot Spice Mild • Identify a normal distribution in term of continuous and discontinuous variation. • Explain how sexual reproduction causes inherited variation • Identify different type of inherited variation Which step are you on? Progress check - Go to page number 9 and - answer the question number 7, 8, 9 and 10. - Time : 5 min Extension List three of your characteristics that are caused by your genetic information Plenary What type of graph do we use for discrete data? Scatter graph Option 3 Pie chart 35 Line graph Option 4 Bar graph Plenary What is continuous variation? When the data is just numbers Option 3 data fits into certain When the categories 36 When the data is secret Option 4 data can take a When the range of values Plenary What is continuous variation? When the data is just numbers Option 3 data fits into certain When the categories 37 When the data is secret Option 4 data can take a When the range of values Plenary What type data would hair colour be? Which graph would we use? Discrete data, bar graph Continuous data, bar graph Option 3 data, line graph Discrete Option 4 Continuous data, line graph 38 Plenary What type data would hair colour be? Which graph would we use? Discrete data, bar graph Continuous data, bar graph Option 3 data, line graph Discrete Option 4 Continuous data, line graph 39
