Across
- 3. In psychology, the biologically and socially influenced characteristics by which people define male and female.
- 5. genetics/ the subfield of biology that studies the molecular structure and function of genes.
- 6. the enduring behaviors, ideas, attitudes, values, and traditions shared by a group of people and transmitted from one generation to the next.
- 8. A persons characteristic emotional reactivity and intensity.
- 9. The proportion of variation among individuals that we can attribute to genes.
- 13. twins/ develops from seprate fertilized eggs.
- 14. Psychology/ The study of the evolution of behavior and the mind, using principles of natural selection.
- 15. a random error in gene replication that leads to change.
- 16. units of heredity that make up the chromosomes; a segment of DNA capable of synthesizing a protein.
- 18. Selection/ the principle that among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed to succeeding generations.
Down
- 1. genetics/ _______________ study our differences and weigh the relative effects of heredity and environment.
- 2. threadlike structures made of DNA molecules that contain the genes.
- 4. the complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.
- 7. Every nongenetic influence, from prenatal nutrition to the people and things around us.
- 10. The effect of one factor depends on another factor.
- 11. twins/ develops from a single fertilized egg that splits in two, creating two genetically identical organisms.
- 12. An understood rule for accepted and expected behavior
- 17. A complex molecule containing the genetic information that makes up the chromosomes.