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Meiosis & Genetics Unit Review Guide

Meiosis & Genetics Unit Review Guide. 2011 YMartinez. MEIOSIS. 1. Chromosome:. 1. Chromosome. threadlike strands made of DNA and PROTEIN. 2. Homologous Chromosome:. 2. Homologous Chromosome:. chromosomes that each have a matching chromosome; one was from mom and other from dad.

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Meiosis & Genetics Unit Review Guide

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  1. Meiosis & Genetics Unit Review Guide 2011 YMartinez

  2. MEIOSIS 1. Chromosome:

  3. 1. Chromosome threadlike strands made of DNA and PROTEIN

  4. 2. Homologous Chromosome:

  5. 2. Homologous Chromosome: chromosomes that each have a matching chromosome; one was from mom and other from dad

  6. 3. Diploid:

  7. 3. Diploid: a cell that contains both sets of homologous chromosomes (2n)

  8. 4. Haploid:

  9. 4. Haploid: a cell that contains only a single set of genes (n)

  10. 5. Gamete:

  11. 5. Gamete: Is a sex cell. An egg or sperm. (n)

  12. 6. Meiosis:

  13. 6. Meiosis: form of cell division that halves the number of chromosomes when forming gametes

  14. 7. Which cells undergo Meiosis?

  15. 7. Which cells undergo Meiosis? gametes

  16. 8. Describe what is occurring in the diagram to the right.

  17. 8. Describe what is occurring in the diagram to the right. Segregation And Recombination

  18. 9. What is the difference between somatic cells and sex cells?

  19. 9. What is the difference between somatic cells and sex cells? Somatic cells—ALL cells except sex cells. Sex Cells—sperm and egg.

  20. 10. Describe the process of fertilization (include number of chromosomes and cell types involved).

  21. 10. Describe the process of fertilization (include number of chromosomes and cell types involved). n + n = 2n or 23 + 23 = 46

  22. KARYOTYPES ad Sex Chromosomes 11. Autosome:

  23. 11. Autosome chromosome that is not a sex chromosome

  24. 12. How many total chromosomes are found in a human diploid body cell?

  25. 12. How many total chromosomes are found in a human diploid body cell? 2n=46

  26. 13. How many chromosomes are found in a human haploid cell?

  27. 13. How many chromosomes are found in a human haploid cell? n=23

  28. 14. How many sex chromosomes are found in human body cells?In gametes?

  29. 15. How pairs of autosomes are found in FEMALE body/somaticcells?What are the sex chromosomes?

  30. 15. How pairs of autosomes are found in FEMALE body/somaticcells?22What are the sex chromosomes?XX

  31. 16. How pairs of autosomes are found in MALE body/somaticcells?What are the sex chromosomes?

  32. 16. How pairs of autosomes are found in MALE body/somaticcells?22What are the sex chromosomes? XY

  33. 17. Which parent determines the gender of their baby, why?

  34. 17. Which parent determines the gender of their baby, why? Father. His Sperm have an X or Y Chromosome.

  35. 18. The diagram below is called a

  36. 18. The diagram below is called a Karyotype

  37. 19. Draw a circle around the sex chromosomes in the diagram above.

  38. 19. Draw a circle around the sex chromosomes in the diagram above.

  39. 20. Draw squares around the autosomes in the diagram.

  40. 20. Draw squares around the autosomes in the diagram.

  41. 21. Is the diagram from a male or a female?

  42. 21. Is the diagram from a male or a female? GUY=XY

  43. 22. What is another name for Trisomy 21 in a karyotype? What causes it?

  44. 22. What is another name for Trisomy 21 in a karyotype? What causes it? Down’s Syndrome Caused by Nondisjunction: when homologous chromosomes fail to separate during meiosis

  45. Mendelian Genetics 23. Genetics:

  46. 23. Genetics: scientific study of heredity

  47. 24. Heredity:

  48. 24. Heredity: Is the passing of traits to offspring

  49. Mendelian Genetics 25. Gene:

  50. 25. Gene: Segments of DNA that code for a protein and determine a trait

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