genetics

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Across
  1. 4. the complete instructions for making an organism consisting of all the genetic material in that organism's chromosomes
  2. 5. a complex molecule containing the genetic info that makes up the chromosomes
  3. 8. the interplay that occurs when the effect of one factor depends on another factor
  4. 10. the proportion of variation among individuals that we can attribute to genes
  5. 11. twins who develop from a single fertilized egg that spills in two genetically identical organisms
  6. 14. the principle that among the range of inherited trait variations those contributing to reproduction and survival
Down
  1. 1. threadlike structures made of DNA molecules that contain genes
  2. 2. the subfield of biology that studies the molecular stricture and function of genes
  3. 3. every external influence from prenatal nutrition to the people and things around us
  4. 6. twins who develop from separate fertilized eggs
  5. 7. the biochemical units of hereditary that makes up the chromosomes; segments of DNA capable of synthesizing proteins
  6. 9. the study of the relative power and limits of genetic and environmental influence on behavior
  7. 12. the study of environmental influences on gene expression that occur without a DNA change
  8. 13. twins raised separately rear similarities in abilities attitudes interests and fears