Chapter 12 Lesson 2

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Across
  1. 2. the different forms of a gene.
  2. 5. one whose trait always shows up in the organism when the allele is present.
  3. 6. the scientific study of heredity.
  4. 8. the offspring of many generations that shows the same form of trait.
Down
  1. 1. a new organism begins to form when and sperm cells in a process.
  2. 3. one whose trait never shows up in the organism when the allele is present.
  3. 4. the passing of physical characteristics, or traits, from parents to offspring.
  4. 7. has two different alleles for a trait.