Ch 3 Genetics

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Across
  1. 2. RNA RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
  2. 5. RNA type of RNA molecule that transfers amino acids to ribosomes during protein synthesis
  3. 9. An organism's physical appearance, or visible traits.
  4. 10. likelihood that a particular event will occur
  5. 13. An organism that has two identical alleles for a trait
  6. 14. A characteristic that an organism can pass on to its offspring through its genes.
  7. 15. allele An allele that is masked when a dominant allele is present
  8. 17. The scientific study of heredity
  9. 18. Offspring of crosses between parents with different traits
  10. 19. A segment of DNA on a chromosome that codes for a specific trait
  11. 20. allele An allele whose trait always shows up in the organism when the allele is present.
Down
  1. 1. Process in sexual reproduction in which male and female reproductive cells join to form a new cell
  2. 3. Square A chart that shows all the possible combinations of alleles that can result from a genetic cross
  3. 4. Meiosis
  4. 6. the offspring of many generations that have the same traits
  5. 7. Passing of traits from parents to offspring
  6. 8. Cell division that produces reproductive cells in sexually reproducing organisms
  7. 11. Different forms of a gene
  8. 12. An organism that has two different alleles for a trait
  9. 16. both alleles express themselves fully in a Yy individual