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chapter 2 sci
Question | Answer |
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Chromosomes | Structures in the nucleus of a cell that control the cells 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. |
Inherited | Passed to offspring from parents. |
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. |