Name: _________________________ Genetic Material and Reproduction Q and A Directions to login to textbook Open Google chrome browser www.google.com search for Think Central 1st website fill in the information, username is 0 and your lunch number, password is student My library Student Edition. Type in R55 in the box to access the glossary that says page number (top right hand corner) and write the definitions of each word. 1. What is a gene? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 2. What is DNA? __________________________________________________________________________________________ 3. What is chromosome? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 4. The above three genetic materials (gene, DNA, chromosomes) are found in which organelle of the cell? (185) ________________________________ 5. Look at the diagram below and explain how gene, DNA, chromosome, nucleus and cell are related to each other. __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ 6. Write the following structures from smallest to biggest. Chromosome, DNA, Cell, Nucleus, Gene _______________________________________________________________ 7. How many chromosomes are found in each of the somatic cells (all cells except egg and sperm) of us? (194) ____________. 8. How many chromosomes are found in sex cells such as egg and sperm? (194) ___________. 9. Go to page 194 in the textbook and answer question 6: Draw a sex cell for the same organism. Read page 199 about Down syndrome and answer the following questions 10. What is Down syndrome? (199) ______________________________________________ 11. How many chromosomes are found of chromosome number 21 in person with Down syndrome _____. 12. What are advantages of asexual reproduction? (pg. 210) a. __________________________________________________ b. __________________________________________________ c. __________________________________________________ d. __________________________________________________ 13. What are advantages of sexual reproduction? (pg. 211) a. ________________________________________________________________ b. ________________________________________________________________ c. ________________________________________________________________ 14. The offspring of asexual reproduction are genetically _____________ (identical/similar) to the parent organism. 15. A benefit of asexual reproduction is that it is __________ (fast/slow). 16. Explain each type of asexual reproduction (pg. 207) a. Binary fission: ______________________________________________________________________________ ______________________________________________________________________________ Example of binary fission: _______________ b. Budding: ______________________________________________________________________________ ______________________________________________________________________________ Example of budding: ________________ c. Spores: ______________________________________________________________________________ ______________________________________________________________________________ d. Vegetative reproduction: ______________________________________________________________________________ ______________________________________________________________________________ Example of Vegetative reproduction: ________________ Draw example of binary fission Draw example of budding Draw example of Spores Draw example of Vegetative Reproduction