bio crossword

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Across
  1. 3. Law of independent assortment states that factors controlling different characteristics are _________ independently
  2. 4. In __________phase, the DNA is replicated in the interphase
  3. 5. _________ interacts with DNA promoters during gene regulators
  4. 9. ______ are the ultimate source of new genetic material (alleles) in a species
  5. 11. What plant did Mendel use in his experiments
  6. 12. __________ is the development of haploid cells into gametes
  7. 15. Dihybrid cross occurs between _______ characteristics
  8. 16. Father of Genetics
  9. 17. _____ is when one plant fertilizes another plant of the same species
  10. 19. Most __________ cells divide by binary fission
  11. 20. Haploid gametes fuse, forming a diploid zygote growing into a ______
  12. 22. Mendel hand-pollinated the pea plants to create _______
  13. 26. Mendel first experimented with which characteristic?
  14. 27. Genetics is the science of ________
  15. 30. 2 factors controlling a given characteristic, where one dominates the other, and these separate and go to different gametes
  16. 33. What does crossing over cause _________ variation
  17. 34. Fused haploid gametes form _______
  18. 35. Mature sperm cells after spermatogenesis gain the ability to _____
  19. 37. Pea plants are _______ pollinating
  20. 38. Cells produced by meiosis are ______
Down
  1. 1. Pollen has tiny grains which are the ________ gamete
  2. 2. The region where sister chromatids are joined to form a chromosome
  3. 4. Centrioles form ______ fibers in prophase
  4. 6. Out of the 23 pairs of human chromosomes, 22 are _______
  5. 7. Pollination occurs when the pollen is transferred to the______, which is the female gamete
  6. 8. __________ is unique to the phases of meiosis in prophase 1
  7. 10. __________ occurs differently after mitosis in plants and animal cells
  8. 13. During F1 of the dihybrid cross all the offsprings had the ____ characteristics but F2 showed all the other possibilities
  9. 14. Codominance occurs when both alleles are equally expressed in the phenotype of the ______
  10. 15. Mutation can occur during _________ in gene expression
  11. 18. The first generation that is cross-pollinated
  12. 21. Different versions of the same characteristic that are inherited to make up the genotype
  13. 23. _______ theory was popular during Mendel's time
  14. 24. ________ traits are controlled by more than one gene, each with 2 or more alleles
  15. 25. __________ chromosomes separate during meiosis
  16. 28. Pea plants have _____ visible characteristic
  17. 29. If the zygote is a diploid cell, the gametes are ______
  18. 31. ____ are the second set of offspring by self-pollination of F1
  19. 32. Oogenesis starts in ______
  20. 36. Pollination is the fertilization in ____________