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Science: Ch. 4

Cell Divison/Heredity

TermDefinition
life cycle The stages that a living thing passes through as it grows and changes.
mitosis The process by which most cells divide.
chromosome A threadlike structure in the nucleus, made up of DNA.
inherited trait A characteristic passed from parents to their offspring.
dominant trait A trait that appears even if an organism has only one factor for the trait.
recessive trait A trait that appears only if an organism has two factors for the trait.
gene The part of a chromosome that contains the DNA code for an inherited trait.
instinct A behavior that an organism inherits.
learned behavior A behavior that an animal acquires through experience.
environment All the living and nonliving things that surround and affect an organism.
Created by: mslind
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