Chapter 3 Genetics Crossword

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Across
  1. 3. traits that are influenced by many factors
  2. 5. packet of instructions to make a living organism
  3. 8. aborting a fetus because you are unhappy with its gender
  4. 9. a statistic that indicates only what percentage of the variation in a particular trait
  5. 13. contains the chemical recipe for making proteins
  6. 14. the inability to conceive after at least a year of trying
  7. 15. twins that are created because a zygote split once
  8. 17. most common extra-chromosome condition that may allow the fetus to survive, also called trisomy-21
  9. 19. a condition in which a person has only an X chromosome
  10. 20. the thing formed when the sperm and egg meet
  11. 21. traits that are affected by many genes
Down
  1. 1. a fatal central nervous system disorder caused by a genetic miscode
  2. 2. the thing that DNA is stored on
  3. 4. which affects only boys with two X chromosomes and one Y chromosome
  4. 6. provides facts and helps prospective parents discuss sensitive issues regarding their risk of passing along harmful conditions to their children
  5. 7. twins that are created because two zygotes were created around the same time
  6. 10. fairly common and contains uncontrollable tics and explosive verbal outbursts
  7. 11. dominant recessive pattern occurs with genes located on X chromosome
  8. 12. a human reproductive cell
  9. 16. something that is composed of a sequence of chemicals aka building blocks of life
  10. 18. cell duplication and division may produce a person with a mixture of cells