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REVIEW SHEET FOR MEIOSIS QUIZ ON TUESDAY, MARCH 2ND REVIEW SHEET IS DUE DAY OF TEST NAME ______________________________________ 1. Define meiosis: 2. Give 2 locations of meiosis in animals: _______________&________________ 3. Give 1 location of meiosis in plants: _____________________________ 4. What happens to the chromosome number in meiosis? 5. Define and draw (if appropriate) the following terms: Term Definition Diagram/label if appropriate Diploid Haploid Homologous chromosomes Chromatid Centromere Zygote 1N 2N Fertilization 6. Which process is longer mitosis or meiosis?___________________ 7. In mitosis, what happens to the chromosome number? ___________________ 8. What does N represent? 9. If N = 12, what is the diploid number? 10. If N = 12, what is the haploid number? 11. What is another way to write/say diploid? 12. What is another way to write/say haploid? 13. Name 2 kinds of meiosis. The one in males is called _____________________ and the one in females is called ____________________________ 14. Each time a males goes through meiosis, ___________ (#) sperm are produced. 15. Each time a female goes through meiosis, ________ (#) egg(s) and _______(#) polar bodies are produced. 16. In fertilization, what 2 cells fuse or combine? ____________ & ______________ 17. In fertilization, are the cells that combine haploid or diploid?____________________ 18. What is produced at the end of fertilization? ______________________ 19. Is this cell at the end of fertilization haploid or diploid? 20. What will this final cell of fertilization become? 21. Complete the following table: Type of cell Diploid or Haploid? Egg Sperm Zygote Skin cell Ovary cell Heart cell Testes cell *think about this one! 1N or 2N 22. Name of this kind of meiosis below____________________________________ Put 1 pair of homologous chromosomes- single file! What happens to DNA or Chromosomes in Interphase? Name # of chr. 1N or 2N: Mission: 23. Name of this kind of meiosis below_____________________________________ # of eggs produced? 1N or 2N in egg? Mission of egg: Name?: Name?: 24. Name of process_____________________________ 1N or 2N? Name of cell: Mission?: 1N or 2N? Name of cell: Mission?: 1N or 2N? Name of cell: Mission?: 25. Show the results of a crossing over: 26. Crossing over produces a new genetic _____________________ 27. Complete the following table: Type of cell Diagram of cell showing correct # chromosomes (the lines represent chromosomes) Heart cell of a horse Sperm cell of a horse Pollen of a rose Leaf of a rose Egg of a dog Sperm of a dog Blood of a dog Diploid or haploid and chromosome # in that cell? 2N or 1N and what does N equal??? 28. SO IN CONCLUSION, meiosis is a process that ______________ the chromosome number so that you can get ready to produce a _____________________. This process is necessary, because everyone knows that when you produce a ________________ each parent contributes _______________ of the genetic information. Since this process is leading up to a zygote (which is a __________________ __________) it would have to be occurring inside of the female’s ________________ and inside of the male’s _____________. The chromosome number in these organs is originally ___________ (#) which is the ________________(diploid/haploid?) number. Meiosis reduces the number of chromosomes to the number _______________ (in humans) which is the _______________ (diploid/haploid?) number. Once the egg and sperm find each other in the process of ________________ they produce a z_______________ which returns the chromosome number to ______________ which is the _________________(diploid/haploid?) number. This process is amazing, NO??????