Reproduction Webquest

Create this answer blank in your notebook: 1.Honey Bee _______ 2. Pink Salmon _______ 3. Sunflower _______ 4. Leopard Frog _______ 5. Baker’s Yeast _______ 6. Bald Eagle ________ 7. Sea Horse ________ 8. Brittle Star _______ 9. Monarch Butterfly _______ 10. Salmonella _______ 11. Giant Amoeba _______ 12. Coast Redwood ________ 13. Volvox ________ 14. Sand Scorpion _______ 15. Flat Back Sea Turtle ______ 16. Grizzly Bear ______ 17. Earthworm _______ 18. Whiptail Lizard ________ 19. Strawberry ________ 20. Red Kangaroo _______ 21. Saguaro Cactus ________

Click here to link to the learn Click here to link to the learn.genetics site about reproductive styles… learn.genetics reproduction styles activity **Assignment: write down the method of reproduction each organism uses next to its name. Hint – correct answers are in green If this will not link for you, copy and paste this into a new browser window http://learn.genetics.utah.edu/content/variation/reproduction/

Answer these analysis questions in complete sentences in your notes… 22-23. Are organisms which reproduce asexually generally complex creatures or simple organisms? 24-26. If an organism could reproduce both sexually and asexually, what advantage would this provide?

Now lets explore some man-made methods of asexual reproduction… 1- Plant cuttings: A small section of the stem and a few leaves are cut from a mature plant, then inserted into soil and kept moist for several weeks. The stem will form roots and turn into a new plant. This new plant will be genetically identical to the mature plant.

Answer this analysis question in a complete sentence in your notes… 27-28. Why would someone want to use cuttings to grow plants?

Now lets explore some man-made methods of asexual reproduction… 1- Grafting: A bud from a mature tree (often a fruit tree) is placed into a cut made into the trunk of a different species of tree which is fast- growing. This bud will grow into a branch on the root stock and will produce fruit quickly, sometimes within 1 year.

Answer this analysis question in a complete sentence in your notes… 29-30. If an apple bud was grafted onto the root stock of a cottonwood tree, would the next year’s leaves look like apple leaves, or cottonwood leaves, or a combination of both? Explain.

Now lets explore some man-made methods of asexual reproduction… 3- Cloning: A skin cell is removed from the animal that is to be duplicated and the nucleus of that cell is removed and saved. An egg cell from a donor animal is extracted and the nucleus is removed and discarded. The skin cell nucleus is inserted into the egg cell and allowed to “re-boot.” A baby _____ will be born – identical to the original animal.

Now, let’s practice some asexual reproduction… clone a mouse You will need a worksheet with mice on the front colored pencils scissors glue

Is cloning an example of sexual reproduction or asexual Analysis questions: Answer these in complete sentences in your notebook. Write well enough that you can use these answers as a resource during the final test.   Is cloning an example of sexual reproduction or asexual reproduction? Explain. 2. What is a somatic cell? 3. What is the purpose of the Egg Cell Donor? 4. What is the major difference between a somatic cell and an egg cell? 5. What gender will the mouse pup be? Why? 6. How is this method of cloning different from embryo twinning? 7-15 Make an inference – write a 5-sentence paragraph explaining your opinion of human cloning. Should we be able to clone ourselves to replace our body parts when they wear out? Should we clone food animals?

For some extra credit, explore the click and clone interactive on the learn.genetics site, and complete the clone-a-mouse worksheet. Click and Clone Interactive You will need the worksheet, 3 colors of colored pencil, crayon, or marker, and a writing instrument to complete this extra credit. Here is the link of you cannot make it connect: http://learn.genetics.utah.edu/content/cloning/clickandclone/