Genetics Vocabulary

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Across
  1. 3. An organism that has two different alleles for a trait
  2. 4. Supports the anther
  3. 10. genetic makeup of an organism
  4. 11. the study of heredity
  5. 12. dominance Situation in which one allele is not completely dominant over another allele
  6. 13. An organism's physical appearance, or visible traits.
  7. 15. Control center of the cell
  8. 16. The stalk of a flower's carpel, with the ovary at the base and the stigma at the top.
  9. 18. The female reproductive part of a flower
  10. 19. trait A genetic trait is considered dominant if it is expressed in a person who has only one copy of the gene associated with the trait.
  11. 20. A change in a gene or chromosome.
  12. 21. threadlike structures made of DNA molecules that contain the genes
  13. 25. Square A chart that shows all the possible combinations of alleles that can result from a genetic cross
  14. 27. A display of the chromosome pairs of a cell arranged by size and shape.
  15. 29. dominance a relationship in which one allele is completely dominant over another
Down
  1. 1. An organism that has two identical alleles for a trait
  2. 2. trait a genetic factor that is blocked by the presence of a dominant factor
  3. 5. one of a number of different forms of a gene
  4. 6. the part of a stamen that contains the pollen.
  5. 7. the male reproductive organ of a flower
  6. 8. the process of producing offspring
  7. 9. A diagram that shows the occurrence of a genetic trait in several generations of a family.
  8. 10. A segment of DNA on a chromosome that codes for a specific trait
  9. 14. An organic compound that is made of one or more chains of amino acids and that is a principal component of all cells
  10. 17. differences in physical traits of an individual from the group to which it belongs
  11. 22. female reproductive cell
  12. 23. The tip of the female reproductive structure of a flower where the pollen lands
  13. 24. A complex molecule containing the genetic information that makes up the chromosomes.
  14. 26. A characteristic that an organism can pass on to its offspring through its genes.
  15. 28. In flowers, the portion of a carpel in which the egg-containing ovules develop.