Genetics Review

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Across
  1. 4. An organism's physical appearance
  2. 7. When an organism has two of the same alleles for a trait
  3. 8. An organism's genetic makeup
  4. 13. The amount of chromosomes in an offspring that comes from each parent
  5. 14. When an organism has two different alleles for a trait
  6. 15. A tool geneticists use to predict the possible offspring of two parents
  7. 16. The type of selection that occurs when humans choose which parents to breed based on their desirable traits
Down
  1. 1. The version of a trait that will always show up when present
  2. 2. A structure in the nucleus of a cell that is made of DNA and protein
  3. 3. The version of a trait that will only show up if the dominant version is not present
  4. 5. An error that can occur when making a copy of a DNA molecule
  5. 6. The molecule that contains the genetic code and all instructions for all living things
  6. 9. A genetically determined characteristic
  7. 10. the different versions of a trait
  8. 11. The type of selection that occurs when organisms that are better adapted to their environment are more likely to survive and reproduce
  9. 12. A set of instructions on a chromosome that codes for a specific trait