Across
- 5. the study of the relative power and limits of genetic and environmental influences on behavior
- 7. a complex molecule containing the genetic information that makes up the chromosomes
- 8. the biochemical units of heredity that make up the chromosomes; capable of synthesizing proteins
- 10. the proportion of variation among individuals that we can attribute to genes.
Down
- 1. threadlike structures made of DNA molecules that contain the genes
- 2. Develop from separate fertilized eggs. They are genetically no closer than ordinary brothers and sisters, nut they share a prenatal environment.
- 3. every non-genetic influence , from prenatal nutrition to the people and things around us
- 4. the complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes
- 6. a person's characteristic emotional reactivity and intensity
- 9. Develop from a single fertilized egg that splits in two, creating two genetically identical organisms