Genetics/Meiosis Crossword

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Across
  1. 4. are offspring of the F1 generation.
  2. 5. physical traits.
  3. 7. have pairs of homologous chromosomes.
  4. 8. spindle fibers pull each homologous chromosome pair toward opposite ends of the cell.
  5. 13. the fusion of male and female gametes.
  6. 19. male gametes.
  7. 21. prior to meiosis I.
  8. 22. have a single set of chromosomes.
  9. 24. nuclei reform in four haploid daughter cells.
  10. 25. the delivery of characteristics from parent to offspring.
  11. 30. sperm cells fertilize egg cells from within the same flower.
  12. 33. the likelihood that a particular event will occur.
  13. 34. the cells begin to divide, and the chromosomes pair up, forming tetrads.
  14. 37. haploid cells produced by meiosis II.
  15. 38. shows the result of a cross.
  16. 39. states that some alleles are dominant and others are recessive.
  17. 40. the genetic makeup.
  18. 41. the offspring of crosses between parents with different traits.
  19. 43. convenient to study.
  20. 44. produces a plant that has two different parents.
  21. 45. when the phenotypes produced by both alleles are clearly expressed.
  22. 46. gene variations produced different expressions, or forms, of each trait.
  23. 48. follows telophase I, forming two new cells.
Down
  1. 1. when homologous chromosomes exchange segments.
  2. 2. is the parents.
  3. 3. produces two genetically distinct daughter cells with four chromatids.
  4. 6. paired homologous chromosomes line up across the center of the cell.
  5. 9. a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes.
  6. 10. organisms that have two identical alleles.
  7. 11. the two cells produced by meiosis I now enter a second meiotic division.
  8. 12. the chromosomes, each consisting of two chromatids, become visible.
  9. 14. separation of alleles in gametes.
  10. 15. when a gene has more than two possible alleles.
  11. 16. undergoes cell division by mitosis and eventually forms a new organism.
  12. 17. the scientific study of heredity.
  13. 18. when two genes do not influence each other’s inheritance.
  14. 20. chromosomes line up in the center of each cell.
  15. 23. have two contrasting characteristics.
  16. 26. controlled by two or more genes.
  17. 27. the heterozygous phenotype lies somewhere between the two homozygous phenotypes.
  18. 28. are offspring of the P generation.
  19. 29. the paired chromatids separate.
  20. 31. a nuclear membrane forms around each cluster of chromosomes.
  21. 32. strands of DNA and protein that are the carriers of genes.
  22. 35. organisms that have two different alleles.
  23. 36. something we each receive from our parents.
  24. 42. the factors that are passed from parent to offspring.
  25. 47. female gametes.