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Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/5/11 Karyotype Female 1. How many chromosomes does the human have? 46 The sperm and egg only have 23 and add up at reproduction. 2. How many chromosomes come from the mother? Father? Mother-23 Father-23 Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/5/11 3. Circle the ones that come from the mother red and the father blue. 4. What is each chromosome made of? DNA 5. Create a diagram below showing where the genes are located in the chromosomes. = genes 6. Go to this website and fill in the chart below for five different organisms. *Diploid number = total number of chromosomes/ haploid number= number from each parent http://morgan.rutgers.edu/morganwebframes/level1/page2/ChromNum.html Organism Squirrel House Fly Armidillo King Crab Camel # total chromosomes 40 12 64 208 70 # chromosomes from mother 20 6 32 104 35 # of chromosomes from father 20 6 32 104 35 Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/5/11 7. Are the number of chromosomes in an organism related to the complexity of the organism? Explain. YES They are because a house fly is very small and doesn’t really have a job it just flies. So the complexity is very low which is why the amount of chromosomes is only 12. The King Crab is big and needs more chromosomes so it can have claws and a shell unlike the fly that only needs wings. NO Random relationship