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Key Terms
Heredity
Our genetic blueprint, the stuff coded in our .
Epigenetics
The study of how factors can turn genes on or off without changing the DNA sequence.
Heritability
The proportion of variation among individuals in a that can be attributed to genes.
Endocrine System
The body's 'slow-motion email system' that uses chemical messengers called .
Pituitary Gland
Often called the 'master gland' because it secretes hormones that influence other .
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