Heredity Vocabulary

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Across
  1. 3. when an organism has two alleles that are the same (e.g. TT)
  2. 5. the allele that shows the trait and is represented by an uppercase letter (e.g. TT)
  3. 6. the monk who studied peas and became the father of genetics
  4. 8. a segment of DNA that makes up certain traits
  5. 10. when an organism has two alleles that are different (e.g. Tt)
  6. 12. a small section of chromosomes that is the code for one gene
Down
  1. 1. strands of DNA coiled up into X shapes
  2. 2. the genes represented in an organism (i.e. Bb, TT, tt)
  3. 4. the physical characteristic of a trait (i.e. blue eyes, curly hair)
  4. 6. the study of how traits are passed down from parents to offspring
  5. 7. the allele that is hidden and dow not show the trait unless both alleles are recessive (e.g. bb)
  6. 9. a characteristic that can either be passed through inheritance or other causes
  7. 11. the instructions or genetic code found in all living things