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Science vocabulary for Lesson 1, Chapter 2

TermDefinition
Chromosomes Structures in the nucleus of a cell that controll the cell's activities
Fertilization The joining of a sperm cell and an egg cell
Fertilized Egg The cell that results when an egg cell and a sperm cell unite
Pollination Movement of pollen from a stamen to a pistil
Gene The section of a chromosome that controls a trait
Recessive Gene A gene whose expression is hidden by a dominant gene
Dominant Gene A gene that can prevent the expression of another gene
Hybrid An individual that has a dominant and a recessive gene for a trait
Mutation A permanent change in the structure of a gene or chromosome
Selective Breeding Breeding plants or animals with certain traits to produce offspring with those traits
Created by: s.e.perlowski
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