Across
- 1. Chromosomes molecules contain these.
- 3. An undesirable mutation.
- 6. The effects of parenting are an example of this.
- 11. Rats housed in this environment showed brain weight increases.
- 13. An important part of most people's early environment.
- 14. Twins that are no more genetically similar than any other two siblings.
- 16. Twins that develop from a fertilized egg that splits in two.
- 17. Growing up in a household with smokers or nonsmokers is an example of a(n) __________ factor.
- 18. An example of this is one identical twin being more likely to divorce if the other does as well.
- 19. The source of all genetic diversity.
Down
- 2. The influence of this consists of the genes passed along by your parents.
- 4. Shared attitude of our beliefs, norms and behaviours of a group communicated from one generation to the next.
- 5. __________ babies grow more rapidly when they receive special handling.
- 7. Understood rules for expected and acceptable behaviour within a group.
- 8. Separated identical twins have been found to have similar heart rates, brain waves and ________ levels.
- 9. Rejection from a _______ group is a leading cause of school dropouts.
- 10. Adopted children share the more similar personality traits with their __________ parents.
- 12. Molecules that your chromosomes are composed of.
- 15. Adoption studies and twin studies are conducted by behaviour __________.