Unformatted text preview: carrier already passed their genetic information to their spawn (children have a 50-50 chance of getting it) and therefore it stays in the gene pool for a long time. 2-Genes are affected by behavior. a. Twin studies compare similarities between different types of twins to determine the genetic basis of specific traits. i. Monozygotic twins one egg splitting into two (ie. Identical twins) ii. Dizygotic twins two siblings who result from two separately fertilized eggs (ie. Fraternal twins) Differ in both genotype and phenotype. b. Adoption studies compare the similarities between biological relatives and adoptive relatives. c. d....
View Full Document
- Winter '08
- Genetics, gene pool, Twin, polygenic, genotype variation, adoptive relatives. c.