Psychology Exam - Psychology Exam#2 Study Guide Chapter 5 1...

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Psychology Exam #2 Study Guide Chapter 5: 1. identical & fraternal twins: - monozygotic: identical twins (develop from the same egg), identical genes - dyzygotic: fraternal twins (develop from two separate eggs), share half their genes, like normal siblings - studying sets of twins is useful way to know more about influence of genes on a behavior 2. principles of genetics: - chromosomes : - most cells contain a nucleus with hereditary material (chromosomes) which are instructions in the form of strands - humans have 46 - 23 pairs in every body cell except sex cells - Sperm and the ova each have 23 unpaired chromosomes (23+23=46) - LOOK AT DIAGRAM IN NOTES - Genes : - sections of chromosomes that control the chemical reactions that direct an organisms development - what makes a person develop they way they do, and look how they do - control the protein production which allows a persons characteristics to develop (height, weight, eye color, ect.) - a gene is composed of DNA, which controls production of RNA (which
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This note was uploaded on 04/30/2008 for the course PSY 105 taught by Professor Gordon during the Spring '07 term at University of North Carolina Wilmington.

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Psychology Exam - Psychology Exam#2 Study Guide Chapter 5 1...

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