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Chapter 2 Learning ObjectivesLO1What is our basic genetic endowment?Our genetic code is stored in our genes. All genes are composed of DNA that determines the nature of every cell in our bodies and how they will function accordingly. A offspring receives 23 chromosomes from each parent and 46 chromosomes provide genetic blueprint to guide a cells activity for the rest of individuals. Humans have the ability to procreate, giving them components to create a Zygote, which can possibly result in both monozygotic or dizygotic twins. LO2What are the major genetic threats to normal development?A recessive gene responsible for a disorder may be passed on silently, revealing itself only when it is paired with another recessive gene. Another way that genes are a source of threat is that they may become physically damaged through wear and tear, or through botched cell division. Certain genetic disorders are inherited. LO3What is the role of behavioral genetics?The field of behavioral genetic, which is a combination of psychology and genetics, studies the effect of heredity on personality and behavioral characteristics. Behavioral genetics are used to study the effects of heredity on