Crossword—Traits & Reproduction

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Across
  1. 2. having gene versions that are the same-also called pure or purebred
  2. 5. the appearance or physical feature of what a living thing looks like-for example blue eyes
  3. 7. a type of molecule that genes and chromosomes are made of
  4. 8. the allele combination of an individual organism like BB or Bb
  5. 10. any difference in traits between individual organisms
  6. 12. the study of how hereditary traits are passed between generations
  7. 15. a random change to a gene that sometimes results in a new trait
  8. 18. A tool used by geneticists to visualize all possible allele combinations
  9. 19. when a male and a female reproductive cell combine to create an offspring
  10. 20. having gene versions that are different-also called hybrid
  11. 22. an organism produced as a result of reproduction
Down
  1. 1. a long piece of DNA that contains many genes
  2. 3. a type of large molecule-made of amino acids that performs important functions inside organisms
  3. 4. to receive genes from a parent
  4. 6. A recessive gene is a gene whose effects are hidden in the presence of a dominant gene.
  5. 9. the parts of the cell that build protein molecules based on instructions from genes
  6. 11. the part of a cell where chromosomes-DNA/genes are found
  7. 12. A chunk of DNA on a chromosome that codes for a trait -also instructions for making a protein molecule.
  8. 13. different forms of a gene are called alleles-a specific form of a gene that provides instructions for making a particular protein molecule
  9. 14. when this gene is present-it expresses itself more strongly all by itself than any other version of the gene
  10. 16. a specific characteristic of an individual organism
  11. 17. a pedigree is a genetic representation of a family tree that diagrams the inheritance of a trait or disease though several generations
  12. 21. often called the father of genetics