Unit 4 vocab

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Across
  1. 1. Mendel's second conclusion, which states that some alleles are dominant and others are recessive
  2. 3. genetic makeup of an organism
  3. 5. two identical chromatids
  4. 8. the first generation of offspring obtained from an experimental cross of two organisms
  5. 11. short arm of chromosome
  6. 15. Situation in which one allele is not completely dominant over another allele
  7. 17. Area where the chromatids of a chromosome are attached
  8. 19. An organism's physical appearance, or visible traits.
  9. 20. threadlike structures made of DNA molecules that contain the genes
Down
  1. 2. offspring of the F1 generation
  2. 4. the cross of two genes in which one is dominant over recessive
  3. 6. A condition in which neither of two alleles of a gene is dominant or recessive.
  4. 7. long arm of chromosome
  5. 9. The scientific study of heredity
  6. 10. A chart that shows all the possible combinations of alleles that can result from a genetic cross
  7. 11. Parental generation, the first two individuals that mate in a genetic cross
  8. 12. (genetics) an organism or cell having two sets of chromosomes or twice the haploid number
  9. 13. An organism that has two identical alleles for a trait
  10. 14. DNA segments that serve as the key functional units in hereditary transmission.
  11. 16. An organism that has two different alleles for a trait
  12. 18. Different forms of a gene