Unit 3 Introduction

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Across
  1. 1. A tool used to determine the probability an offspring receives a trait
  2. 2. Two identical alleles for a trait
  3. 3. a microscopic environment
  4. 6. surrounds the cell and controls what goes in and out
  5. 8. A form of a gene that provides instructions for a specific trait
  6. 10. the ability to move, grow, and live
  7. 12. male reproductive cell that contains all the DNA of the father
  8. 13. where ribosomes are made within the nucleus of the cell
  9. 14. An allele that overpowers other forms of the trait
  10. 15. Male and female reproductive cells combine to create an offspring
  11. 17. The likelihood of a particular outcome
  12. 22. A characteristic all members of a species have
  13. 23. A trait that is masked by the dominant allele
  14. 25. The observable traits of an organism, influenced by genotype and environment
  15. 30. makes up all living things
  16. 31. a small molecule that is broken down from large protein molecules
  17. 32. brothers or sisters that are genetically identical
  18. 34. A family tree that shows which members of a family have a particular trait
  19. 35. Brothers or sisters that are genetically different
  20. 37. the control center of the cell
  21. 39. means made of one cell
  22. 40. Any living thing (plants, animals, bacteria)
Down
  1. 1. unicellular organisms without a nucleus are called:
  2. 2. Two different alleles for a trait
  3. 4. means made of more than one cell
  4. 5. female reproductive cell that contains all the DNA of the mother
  5. 7. Any difference in traits between individual organisms
  6. 9. the product of reproduction (a new organism)
  7. 10. multicellular organisms with a nucleus are called:
  8. 11. when two things are the same/similar
  9. 16. the powerhouse of the cell; where energy is created
  10. 18. the parts of the cell (the "organs" of the cell).
  11. 19. most common form of a prokarya organism (unicellular without a nucleus); can be good or bad for you
  12. 20. something that is too small to see with the naked eye
  13. 21. The differences amongst living things
  14. 23. Parts of the cell that build protein molecules based on instructions from DNA
  15. 24. Reproduction that involves only one parent and produces offspring that are identical to the parent
  16. 26. A large molecule that is used in cellular growth and repair
  17. 27. The combination of gene versions an organism has for a trait
  18. 28. A section of DNA on a chromosome that codes for a specific trait
  19. 29. when one cell splits into two; for growth or repair
  20. 33. Reproduction that involves two parents that combine their genetic material to produce a new, different organism
  21. 36. Something that is passed from parents to offspring through genes
  22. 38. threadlike structures made of DNA molecules that contain the genes