INVESTIGATION 3 CHROMOSOMES AND GENES INVESTIKITS for KIDS Lab-Aids No. 1271 FORENSIC SCIENCE and DNA FINGERPRINTING In Investigation 2, you leamed about the structure of chromosomes and genes. In this activity you will construct some chromo- somes with the genes of specific traits of the perpetrators. Evidence collected thus far at the crime scene did not give us very specific information about the accomplice. A few days later a similar blue scarf was found in the Investi-Bank Lost and Found. This was sent to the crime lab and a long, straight, blonde hair was found. We will presume that this was indeed the scarf and this blonde hair belonged to the accomplice. gender VOCABULARY suspects 1. Based on the information you recorded on the bank robber (Perpetrator 1), list that suspect's physical traits. Gender Height Hair Color Hair Texture 1. Place the wooden dowel in the hole in the highest level of the tray. See FIG. 1. 2. Make sure you have four long and four short "Genes" of each of the colors: pink, green, red and yellow. Place these in the slots in the tray. See FIG. 2.. 3. Using the Key in the tray, answer the following questions. 1. How many genes are there? 2. How many different color genes are there?_ 3. How many large genes? 4. How many small genes?. 5. What color are the genes for gender? What does gender mean? 6. What color are the genes for hair texture? 7. What color are the genes for height?_ 8. What color are the genes for hair color?. FIG. 1 FIG. 2 8888 In FIG. 5. at the arrow, you will see that there are genes (black) on these chromosomes. The genes are segments of DNA that contain instructions that are responsible for specific traits. The chromosomes have been greatly enlarged in order to identify the genes and their location on the chromosomes. FIG. 5 1. Place the sticker that shows the chromosome 10x larger in the correct space. 2. Place the sticker that shows the chromosome 100x larger in the correct space. 3. Place the sticker that shows the chromosome 1000x larger in the correct space. 4. Place the sticker that shows the chromosome that is 10000x larger in the correct space. OOD OOO 10x -100x 1000x 10000x