Psychology (11-12)

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Across
  1. 6. the study of environmental influences on gene expression that occur without a DNA change
  2. 8. a person's characteristic emotional reactivity and intensity
  3. 11. threadlike structures made of DNA molecules that contain the genes
  4. 15. the subfield of biology that studies the molecular structure and function of genes
  5. 17. twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms
  6. 18. Selection the principle that, among the range of inherited trait variations, those contributing to reproduction and survival will most likely be passed on to succeeding generations
Down
  1. 1. a random error in gene replication that leads to a change
  2. 2. the complete instructions for making an organism,
  3. 3. the study of the relative power and limits of genetic and environmental influences on behavior
  4. 4. The proportion of variation among individuals that we can attribute to genes.
  5. 5. Deoxyribonucleic acid
  6. 7. the biochemical units of heredity that make up the chromosomes
  7. 9. the subfield of psychology; the study of the evolution of behavior and the mind, using principles of natural selection
  8. 10. culturally modeled guide for how to act in various situations
  9. 12. every nongenetic influence, from prenatal nutrition to the people and things around us
  10. 13. the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity)
  11. 14. the type of behavior genetics that studies how the structure and function of genes interact with our environment to influence behavior
  12. 16. twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment.